Ok... What's really suspicious is the alphabetically ordered clusters.

It's almost like someone just labeled a bunch of blank streets with a list of nouns.

Any comparative maps of the area, preferably local ones produced inside the Philippines, would help explain things a lot.

Edit 1:
Digging into it further, reveals the area is pretty big... I've rounded up the coordinates, exploring a little. 14.485, 121.023 is pretty much the spot he was writing about in the blog, almost every street is strangely named. But for quicker entry and sharing, 14.48, 121.02, is still squarely in the middle of the area.

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The area is also the same on:

Bing Maps ( http://www.bing.com/maps/?v=2&cp=14.485000~121.025000&lvl=16... )
Nokia Here maps ( http://here.com/14.4851019,121.0251471,17,0,0,normal.day )

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From what I can tell the area these oddly named streets cover is rather extensive. Several municipal regions have the same pattern. These municipal areas show the pattern:

Bakoor City ( https://www.google.com.au/maps/place/Bacoor+City,+Cavite,+Ph... )

City of Las Piñas ( https://www.google.com.au/maps/place/City+of+Las+Piñas,+Metr... )

Parañaque ( https://www.google.com.au/maps/place/Parañaque,+Metro+Manila... )

Taguig ( https://www.google.com.au/maps/place/Taguig,+Metro+Manila,+P... )

Muntinlupa ( https://www.google.com.au/maps/place/Muntinlupa,+Metro+Manil... )

City of San Pedro ( https://www.google.com.au/maps/place/City+of+San+Pedro,+Lagu... )

Dasmariñas City ( https://www.google.com.au/maps/place/Dasmariñas+City,+Cavite... )

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I could keep going but Dasmariñas City shows another interesting pattern, the suburb names are pretty generic, such as:

BGY Zone I - B ( https://www.google.com.au/maps/place/Bgy.+Zone+I+-+B,+Dasmar... )

Area 1 ( https://www.google.com.au/maps/place/Area+1,+Dasmariñas+City... )

Area 3 ( https://www.google.com.au/maps/place/Area+3,+Dasmariñas+City... )

Area B ( https://www.google.com.au/maps/place/Area+B,+Dasmariñas+City... )

Area C ( https://www.google.com.au/maps/place/Area+C,+Dasmariñas+City... )

Area G ( https://www.google.com.au/maps/place/Area+G,+Dasmariñas+City... )

Area K ( https://www.google.com.au/maps/place/Area+K,+Dasmariñas+City... )

Some interesting things like Area 2 and Area B not being present seem conspicuous but not necessarily a pattern, these names are so generic its entirely possible they represent some kind of placeholder policy.

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Edit 2:

Open Street Map shows the same names. Definitely looking deliberate, possibly a historical quirk of some kind that i haven't been able to unearth through Google translate and searching for Filipino phrases to do with road naming.

Further down [1] it was suggested that this is some kind of new development, implying a property manager just named them all in a batch. Well, the fact that the open street map data clearly shows "Chicago"[2] and "Atlanta"[3] located in the very heart of Manilla's industrial port district. This makes it rather hard to consider a 'new development' as an option.

Further, to this, Chicago shows up as the first discrepancy in these names which may lead to some answers. The southern end of 'Chicago' doesn't match up to what Google displays when you view this [4] area on Google maps. It shows 'Chicago' as "Delgado St", and the southern disconnected street is also called "Delgado St" which in the OSM data shows up as "Antonio C. Delgado"[5].

From the look of it, some of these names may be attributable to mistakes, but the underlying question of where these seemingly place holder names originate, remains unanswered.

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Edit 3:

The seemingly weird names are widespread, subsections of the old section of Manila, the Tondo district, are utterly awash with oddness, several dozen marks consisting of just numbers, are evident here on this map level on google maps [6]

Moving further away, I find "Sunshine"[7], and "2.91km"[8] in Quezon City. 2.91km also seems to give Google grief as the name seems to be incorrectly handled on that street, with most of the north end labeled as "2.91km" and the south end "Saint Martin" but when you zoom in, Google starts overlaying both names and the north end isn't recognized as "2.91km" when you ask Google what's at the location.

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Spreading the net wide over the whole country, the names from the northernmost end, at Basco show a difference when viewed in OSM[9] vs Google maps[10]. Google displays the names with "St" added to most of them, all the roads are marked the same on these maps, but on OSM, all the street names lack a suffix indicating as such. Moving south, the names in Calayan on the island of Cagayan seem to lack names on both OSM and Google Maps. Continuing south to the main island, the town of Aparri shows the same pattern on Google[11] and OSM[12] with OSM having no street suffixes.

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Jumping all the way south now, Digos City demonstrates this weirdness nice and clearly. We find "Luna" in Google[13] and OSM[14] with Google not even having the label. Moving around some more, we go to "Apple" in South Cotabato, on Google[15] and OSM[16]. I could keep browsing but I've run out of time to keep digging for now, at least I've ruled out 'local quirk' and found evidence the pattern is evident across the entire Philippines.

Speculatively, if there was no native history of naming routes back before Spanish and then later American rule, or the colonial governments simply didn't care for the native names, its entirely possible that with thousands of streets and roads lacking names or names they could pronounce, early colonial governments merely went over the map and gave each of them one, the mindset of "cant govern what you cant name" being present throughout history, government wanting to be able to refer to places by name in various reports and meetings effectively requiring them to find a way to give all these a name. However this doesn't really cover what are clearly relatively modern urban roads, such as "Chicago" and "Atlanta" found in the port district of Manila, which leaves this theory with a few shortcomings.

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1 - https://news.ycombinator.com/item?id=8414256

2 - http://www.openstreetmap.org/way/29170930

3 - http://www.openstreetmap.org/way/16176658

4 - https://www.google.com/maps/place/Manila,+Metro+Manila,+Phil...

5 - http://www.openstreetmap.org/way/16176619

6 - https://www.google.com.au/maps/@14.6128113,120.9634945,15z?h...

7 - https://www.google.com.au/maps/place/Sunshine,+Quezon+City,+...

8 - https://www.google.com.au/maps/place/2.91KM,+Quezon+City,+Me...

9 - http://www.openstreetmap.org/node/198496785

10 - https://www.google.com.au/maps/place/Port+Rd,+Basco,+Batanes...

11 - https://www.google.com.au/maps/place/Aparri,+Cagayan,+Philip...

12 - http://www.openstreetmap.org/node/198505523

13 - https://www.google.com.au/maps/@6.7474661,125.3659606,18z?hl...

14 - http://www.openstreetmap.org/way/97401719

15 - https://www.google.com.au/maps/place/Apple,+General+Santos,+...

16 - http://www.openstreetmap.org/way/60237885