any way to prevent gues post Thread

Hello, any way of having Guests permission revoked on posting on ur selfmade games page?

Negative.

Yes, mark the post as spam and it will block that guest from posting.

I'd assumed he meant guests in general. My bad for the misinfo!

This is a feature moddb ought to add, since it doesn't presently exist. (Without flagging it as spam, which admins don't have total control over, since users can flag it as great and you can't block guests from totally being unable to post on your page).