I agree it's present in any kind of dialogue where people assume the worst of others, but Reddit at least allows unlimited text. Same with this site -- I've see

I agree it's present in any kind of dialogue where people assume the worst of others, but Reddit at least allows unlimited text. Same with this site -- I've seen many reactive comments, but then a thread resolves it and everyone reaches a good place. I've seen similar on Reddit, although less so compared to here. I don't think I've ever seen the same on Twitter, ever. It usually devolves into something worse. I do think there are parallels between Reddit and Twitter that encourage a level of snark that is just never appropriate when talking to a human in real life, unless you know them well.