For example, people on Reddit asking redundant questions and give equally redundant or unhelpful answers.
Whenever every ‘What’s the worst show you’ve seen?’ is asked, you’ll get 10,000 “Kardashians” answers, which is just easy karma farming.
If someone posts in a community that’s geared for something like opinions, but someone elects to just go on a full scale rant instead.
Because of user karma. Even a fake incentive to say things that everyone likes beyond normal social pressure creates a bunch of people who eagerly say inane shit to get moar doots.