Sorry for the inconvenience, but after a long fight with spammers, I have to give up: they won. I don't know what else to do, as a single indie developer, to block them, other than spending way too much time on this than I have, while instead I'd prefer to use that time to work on DOTween itself. So I cleaned everything once again, and now I'm making the forum read-only. For support questions, write me a mail or use DOTween's main Unity Forums thread.
I created this forum mainly as a way to allow DOTween Pro users to download updates without having to wait for Asset Store approvals, so I guess we're going back to that. If you're a Pro user, you can still register and access the private area.
Cheers (sigh),
Daniele