I turned on approve manually for user registrations.
Well, I see live how a user register, the user stay in the forum and then disappear. One user after the other.
Then I go to users waiting moderation and there is nothing to approve.
Then I go to user list and there are all the spam users registered.
Yes, it seems they are not able to post, but I don't want to finish with 8934 users of spam.
How to fix this ?