I used to not do it, but I’ve been influenced by Bing after talking to it for so long during the closed beta (I guess that this is an effect of subconsciously mirroring it so that I don’t get kicked out before the 5 turn limit back in the days haha 😂)
Then again, in diverse online communities, there are various styles and voices that are eventually formed to be what’s “acceptable” be the general consensus. As Lemmy is very new, it has yet to find its voice yet… I think 🤔.
Just found out a while ago that it varies by instance, e.g. for kbin.social, it’s not good to add the exclamation mark and just leave it as community@instance bare.