From David Chen's SubStack piece “How Every Twitter Alternative Kinda Stinks (So Far)”:

The number one thing that stinks about Mastodon is that you have to choose a server to sign up for the service and the process of doing so right now is hopelessly broken. When you go to the page to choose a server, many of them force you to apply for an account and barely any of them seem like they align with general interests. (There are 2 servers for “Furries” but 0 servers for “Film” or “TV”). For this reason alone, I don't think Mastodon will ever be adopted by the masses unless/until a large institutional or corporate backer comes in to bring order to this chaos.

The highlighted is exactly what I found confusing and frustrating when I set up my Mastodon account last month. No film, no baseball, no ... whatevs. What server did I wind up with? I forget. (It wasn't “Furries.”) In fact, I thought I begged off at the last moment, but, no, I do have an email from Mastodon so ...

That's right, it's the CIM one. Or C.IM. Creation Innovation Masturbation or something.

Anyway, I'm there, at this name, if anyone's interested.