I'm curious what, if any, guidelines people self-impose to try and engage in a productive way online (both on Lemmy and elsewhere). "Netiquette" if you will.

A couple of rules that I think are good practices, but still see too often, are:

• don't pile onto the most downvoted comment. Kinda like don't feed the trolls, but it's more about not letting yourself get rage baited. Instead, downvote them and move on.
• don't give a non-answer to someone's question. Ex. if someone asks how to do X, don't answer with, "Why are you trying to do X? You shouldn't want to do X. Do Y instead." Instead, explain what it would take to do X, and then offer Y as a possible alternative and why it may be a better option. But assume they already know about Y, and it doesn't fit their use-case.

For that last one, finding a thread where someone has asked the exact question you want answered, only to find a thread full of upvoted non-answers is up there with the dreaded "nvm, I figured it out - 10y ago".