I remember the early days of instant messaging where people would just jump in a chatroom and ask where people were from, then sit there in awe. “HONEY, I’m talking to someone from Ireland! HONEY! Come look!”
I’ve made accounts on a handful of the bigger ones, just to have them. If one is inaccessible for any reason, it seems like a good idea to be able to log into other instances.
As for where I’ll spend most of my time, it’ll probably be in whichever is the most open and least likely to defederate others.
I remember the early days of instant messaging where people would just jump in a chatroom and ask where others were from, then sit there in awe. “HONEY, I’m talking to someone from Ireland! HONEY! Come look!”