While it’s true Bluesky has only a small number of sign-ups, it’s still invite-only, which limits how many people can sign up. There has been lots of interest in Bluesky, and many people simply haven’t been able to get an invite.
I however, don’t disagree otherwise. I think their choice to be invite only is going to put them in a harder position long-term, especially with ActivityPub taking off and being a lot more open.
Also Jack Dorsey is a fucking asshat and I don’t trust him being the controlling factor for a fucking internet protocol, but that’s just, like, my opinion man.