In a day, the total number of new pins is 10*20= <<10*20=200>>200.
There will be 30*200 = <<30*200=6000>>6000 new pins after a month.
The total number with old pins present is 6000+1000 = <<6000+1000=7000>>7000 pins
If the owner deletes five pins every week, the total number of deleted pins in a week is 5*20 = <<5*20=100>>100 pins.
After a month, the number of deleted pins will be 100*4 = <<100*4=400>>400
The number of pins after the old pins are deleted is 7000-400 = <<7000-400=6600>>6600 pins
#### 6,600