It's definitely a short term thing with unfortunate long term consequences. Indeed, I've seen tons of communities founded on drama and hate for something else,

It's definitely a short term thing with unfortunate long term consequences. Indeed, I've seen tons of communities founded on drama and hate for something else, and the vast majority will die in a matter of weeks or months. That's because people get bored with bashing the same things all the time or trying to kill each in other in an online flamewar, and the community will need to either build a real focus or accept its defeat. Also, the more drama a site or service attracts, the more good members it'll inevitably lose. People with the kind of personality you want in a community aren't the kind to get into cat fights or attack people for months on end, and those you do attract with such 'content' tend to be the worst kinds of people. So yeah, it's definitely a short term optimisation which can blow up in their face further down the line.