> Now you are saying tracking is improving your experience, but you just said the ads are useless.

Where did I say that ads are useless? That's kind of scary that you come to that conclusion from my comment.

Is it because I am talking about ads available on Youtube? I hope you don't get theses ads, but there's some crappy ads on there that most people will see, unless Google believe you fit in theses criterias (thus crappy ads some people gets).

Normally I would have suggested you to go find a conspiracy theory channel and then watch what Youtube would give you afterward, but I think Google fixed that. At one point I was interested in watching people debunk flat earth conspiracy theory, and god my whole Youtube experience changed, I stopped doing that quickly.

> Google (search) had that kicking-ass feature that it would show you some 20 ads relevant to your query clearly marked on the side bar. It was incredibly useful.

Incredibly useful for what? The end goal of any ads is to make a sale (it can be extremely long term, but still, it's to get cash out of you). In the past few days I watched videos on theses 3 channels:

- Baumgartner Restoration

This one is about art restoration. I like to watch it on the side while doing something else, or right before sleeping, it's amazing, you should try it. Will I ever buy any art related stuff? Unlikely... Art restoration? Unlikely...

- Mathilda Hogberg

Someone that did a MTF transition. I got her on my suggestion feed, no idea why, but I was interested in the result of a full transition so I decided to watch it and then some others of her video. I'm not considering transition, I don't have her taste, I don't have much related to her. Would I buy anything then in this sphere? Unlikely

- Micarah Tewers

She makes dress and is quite interested into historical dresses. She is funny, have a quirky personnality, is quite ressourceful, and what made me enjoy her content is a rant she did about historical dresses on a recent winner of a Best costume award. I'm not considering buying a dress, nor am I interested in making one (I am male just in case it make it more relevant to you).

So in total, for theses 3 channels, ads would have been a waste on me considering the content. I watched at least 3-4 hours in between all 3 channels and they deserve to be paid for producing that content that I enjoyed. Luckily I am a Youtube Red subscriber, so they'll get paid whatever happen, but if I wasn't, then they would have gotten nothing out of my views.

I should receive a Ryzen 5 3600 tomorrow (not an XT sadly, but $/performance a 3600 is better). Google knew it, perfectly well believe me, my suggestions confirm it ;). If any reseller had any ads over one of theses videos, I would have most likely brought it from them. That's what happened when I bought my first netbook in 2010, Google Ads on Gmail (never mentioned it on any email, Google got it from a previous search). So if I had an ad about that processor or any related component, well maybe Baumgartner Restoration, Mathilda Hogberg or Micarah Tewers would have gotten a bit more from ads that I viewed ;).

> Useless as it became, people stopped clicking

That's a big assumption. Google is a trillion dollar industry and that's not from Youtube, it's all from ads. You don't become a trillion dollar industry by doing worst, but by doing more. Why would you then assume it made less money and not that it was simply a way to make more money? It's crazier considering then that you consider that their next step was a solution to make more money... Both tracking and mixing ads with result were to make more money.

> Are the original ads harmful?

What? Harmful? I'm really interested in your thought process, third time now that I ask myself how you get to a conclusion, in 3 paragraphs. The original ads were not as useful. I don't care about dress, please don't show theses ads to me, you will lose screen estate and you are assured to get no click from me, you are losing money by providing me a service that I can't pay for. Show me what I may be interested in buying, and that's most likely be technologically related, even on a art restoration channel.

> And you are protecting from that by surrendering extra information?

I am protecting? Like myself? No I protect the service and his likeliness to get money out of me. That extra information, I give it voluntarily already. If I search on Google, I am telling Google that I am interested in theses things. It's not extra information.