The content on all the communities seem different.
Why didn’t the “copycats” get the “this community name has already been taken” message?
It was bad enough at The Other Place finding one overlooked sub about one of your interests.
Now you have to find every single community in every single instance if you hope to talk about your topic?
I mean, look at this:
No Stupid Questions@lemmy.world
No Stupid Questions@kbin.social
No Stupid Questions@lemmy.ca
No Stupid Questions@mander.xyz
The answer is no. You don’t NEED to subscribe to all of them. If you want to make absolutely sure you don’t miss a single thing everyone says on that topic, then maybe you do. But if you are just interested in electric cars, you can just pick the most active one of the one with the most subscribers. Even on reddit there were both /r/electriccars and /r/electricvehicles.