XF 1.5 How to prevent SPAM from Google/Facebook Login Accounts


Active member
Unfortunately the most SPAM on my board is from google/facebook sso registered in users.
I have already added ASKIMET, that does wonders, but 1-3x a week some spam goes still public.

What options do we have in Xenforo, to prevent SPAM from google/facebook logged in users? I mean, the option to add a captcha during registration is with Login-API providers not there.

The other option with RegEx filter the threads seems not to be that easy...

Am I the only one who is fighting against this google/facebook-account spam ?
Help :/