Maybe something that is not understood by new lemmings, at least me, is that when we join communities in other instances we may find ourselves blocked from accessing them (without creating another account) in the future.
A reasonable PSA seems to be to keep in mind the 'philosophy' of other instances before joining general interest communities such as News, Technology, Gaming, etc...
I wouldn't call it worse. From what I learned, their goals of being a super-curated-exclusive community don't agree with mine, so I'm happy I signed up for a more open instance
When choosing instance for your account there should be info on how much instances are blocked by the instance and how many instances are blocking this instance