It’s open to the public, and anyone is free to come in and sign up. But I’m not going to go on BasilMarket/ Profil3 and scream that we’ve gone public. Once everything is bad to normalcy, I might make a blog on profil3 to test the waters. Other than that, do what you like.
As for the /b/tards thing. I guess, but I don’t see why they would.