I never looked to closely at the spectacle, but I seem to recall that the previous player in the "conservative Twitter" landscape, Parler, was making the same claims about being an "unrestricted marketplace of ideas" but was actually requiring all new accounts to post in a restricted mode until some power users had confirmed their conservative zeal.
Given who is at the helm of this new company, I suspect the same shenanigans to be going on, and worse. I'd use a VPN at the very least if I was going to attempt any kind of infiltration.