There are different opinions on Beehaw’s registration process. I kind of see how some people would find it dissuasive, specially after most of us are coming from Reddit. But I still think it’s very practical, at least for the time being.
Btw, this is only my opinion as a new user, I don’t know any of the admins/mods. Link to my original comment.
In my experience, if you reload the page and copy-paste all the details quickly, it will let you through.