That would be interesting here, but it would make a sociology dissertation (in a bad way) on Reddit.
I think I behaved basically the same there and here, but the DMs I get here are all: the post we were discussing got removed, here’s the last thing I wanted to say. On Reddit, I got those, plus occasional death and doxxing threats, sometimes from a person who was pretending to have a civil conversation with me in a comments section at the same time they’re messaging me threats.
I've found it useful in the rare case that I've posted some project and someone wants to use it and has a question or something after the main thread is locked. I've had a few people reach out just to thank me for solving their problem which is always nice.