Like most commenters here, because it was recommended and I'm a newbie at this.

Question though, if I create another account on say lemm.ee, is there a way for me to migrate my subscribed communities?

I can only speak for myself, but as a complete newbie who wanted to create an account and figure out how lemmy works, I honestly thought lemmy.world is the main site and everything else is just smaller niche communities.

There was an ELI5 post that clarified how it all works, but that was after I created my account.