I signed up to this forum. You sent me a confirmation email. I clicked on that link. Then I got a message to say the link was invalid. I came back to this forum and clicked on "Resend email confirmation". I got a message to say that I was not authorised to do that...
So...do you want new members or not?
Got a second confirmation email (I think...); same thing happened:
"This confirmation link has already been used or is invalid."