Im joining in on the reddit ditching thing, and was kinda worried at first that i wouldnt be able to like use it the way i did reddit as it feels like a whole new place, but after engaging with posts and people and actually being a part of lemmy rather than being lurk mode all the time i was pleasantly surprised with how easy it is to become a member of the community, theres a reasonable amount of subs (or whatever the other word for em is) that fit my interests, enough linux content and shitposting for my liking, and the overall random posts made by people equally fed up with Leddit. (also i admit i used reddit a little cus there was this post on the fedora sub showing how to fix a sound issue i been having after a recent update)
All this fragmentation will reduce the adoption for sure. No one wants to write to a sub filled with 5 people while another is filled with 5k people. We should adopt one new fresh instance and make it our main, and point people coming from reddit to this new instance.
That would defeat the point of decentralization. Nothing is stopping you from going to lemmyverse.net searching for a community you want, and only subscribing to the biggest. In time the choice will be more obvious.