As most reddit refugees I didn't know how the fediverse worked and I jumped over here a week or so preemptively before a lot of the information on how the fediverse worked was widely established. I was frustrated because initially I couldn't add communities I was searching for and until people migrated over and made the community connections, the easiest way for me to see all the different communities out there was instance hopping. Now I know better and only really use one or two accounts because I am still having trouble viewing/posting things from certain ones. I chose to make a kbin account to see the variety in formatting and the different magazines available which are separate from Lemmy communities. Even yesterday, playing on kbin, I couldn't view all the communities that I know are out there in the Lemmy part of the fediverse. I do, however enjoy the kbin UI. Lastly, if one server instance goes down permanently, by having a second account on a different instance, I won't be completely lost or cut-off.