Why Christians come to atheist forums

[Spooky]

I mean, from what I've observed, atheists get really bored on Christian forums, so they leave or get banned. How is it we have so many long-time regular Christians here? Is it their martyr complex?

Obviously every forum is different, but consider these two generalizations:

Any atheist forum at which I've participated is known for being inclusive of all views. You won't get banned so long as you don't spam, threaten, or break other guidelines. You can push an awful lot of woo and still be within the rules of the forum.

Every Christian forum I've joined or read their ToS has stricter rules for what you can and cannot post. Many of them will warn and ban you for simply showing sufficient dissent to their view point. In many of these forums, you cannot be openly atheist. In one forum, it wasn't uncommon for people who were nominally Christian to be flagged as "nonbelievers" (yes, they had a special member group for that) because they weren't the right type of Christian.

The difference is likely inclusivity vs exclusivity.

So...christian forums tend to be a big circle jerk where nobody wants a challenge?