I saw one guy point out an old HEAT night flick with wet paint was posted as an original before showing the gone over panel. Hinting the page is probably run by TCI dudes, since they're never called out and it's pretty obvious they cap people with their end2ends on reefers with humungous backgrounds.
Whatever though, I just see this page as pure entertainment and it's funny seeing people make fools of themselves. We've all done shit here and there that we justify in our own way, whether it was ethical to the game or not. The way I see it just don't be a fuckboy and follow the traditional rules of graff. Don't go over OG's, deceased or panels that have clearly been there for 10+ years, and if you do have to go over someone make sure that you a) burn their piece with more style AND colours and b) cover their piece COMPLETELY, or at least show that you tried to if you do run out of background. This is out of respect. If you do a simple one colour straight on a panel and someone burns over you with 6+ colours and goes bigger, just shut the fuck up and appreciate the work. You got 1 upped. Too many dudes flex their egos when it isn't called for.