From the topic I was hoping that it was about drawing a line on the filesize. But then I looked at the author nick and I knew I would be hoping in vain.
And if I get it right, all that fuss is because of a map using for texture a clotheless lady with all the interesting bits covered? To get angry over a goatse or lemonparty based map I would have understood, but all that reaction while it didn't even have uncovered nudity is silly. LoL at american puritanism, who thinks that violence is better for kids than love.
The problem with having too many joke map is that good maps get drowned in a mass of crap, and it becomes so much an effort finding a worthy map that good maps get unnoticed.
The problem with deleting bad maps is that map quality can be very subjective, and it would build lots of anger if a couple people were given life or death right over the work of others.