I’m not a member of any Christian forum. I was on one and requested to have my account seized and deleted.
It’s a complete waste of time when all they want to do is gang up on you and publicly shame you on the forum for not sharing their superstitions. It’s like running into a crowd of zombies. You can only take so much at one time before they overwhelm you. Christians have a lot of bravado in numbers. But really they’re just a bunch of zebra, and we’re the lions. So I often will lurk just to see what they’re going on about. I like to see which arguments they’re using. Sometimes a hunter has to study his prey.
I’m on plenty of general forums that are theistically governed. Religion isn’t the aim though. When religion is brought up in the debate areas with the usual “Do you believe in god” threads, they can get pretty heated and turned into the usual “You prove it!” & " No you prove it!" back and forth hibbety jibbety.