Back with newsgroups the general rule was to go from general to specific. You start with a general discussion group and when discussions about video games get annoying you create a games group. If then there are too many Baldur’s Gate discussions you create BG. If they are dominated by Baldur’s Gate 3 you create a Baldur’s Gate 3 group. If everyone is fawning over Withers you create a Withers group which of course will be flooded with discussion about the Withers’ tits mod, which shall get its own group.
Meaning you should create a group when demand is there and not the other way around.
Nah, we just rebooted !gothindustrial@lemmy.world and have several daily posters now, I’d rather build on that than move and start all over again. Besides, there’s a lot of “alt” stuff that doesn’t really speak to me, so if everyone moved I’d just stay behind and wait for it to come to life again. (In fact, being alone on a dead community is kinda goth, lel.)
Hey, if you’re looking for communities to merge, !punk@lemmy.world and !punk_rock@lemmy.ca are both mildly alive, and their mods have been absent for a year or two.