Hello.
I'm not sure if you noticed but I'm having some user registration problem with OS2World since (maybe) November of 2021. I had to disable registration to the main site because the replication to SMForum got broken. First MediaWiki integration got broken and later forum integration.
Today I'm enabling direct forum registration and I will like to play more with OpenID authentication. If someone has more experience with OpenID please let me know.
I will be monitoring the forum user registration this week hoping we don't get spam attacks.
Regards