The signup page used to redirect to the clearnet version for me the last time I tried. I've just rechecked—there's no redirect anymore indeed, BUT it leaks a lot of stuff to clearnet, using CAPTCHA service for example!
So it's even worse now: it creates an illusion that it's a legit onion-only service, yet I think this signup page won't work with the `OnionTrafficOnly` isolation flag (at least in case it attempts to show CAPTCHA).
