I don't see there would be a problem. The term 'Believers' seems to be used in a derogatory sense implying outsiders or outcasts. As history shows us these mindsets lead to witch trials and that misleadingly sanitised phrase 'ethnic cleansing'. By considering that individual beliefs are non-inclusive to any society is a dangerous road to travel. Both the religious and non-religious can benefit from each other's experience and insights.

The few I've encountered here are often accurate representations of those who choose to proselytize (i.e., zero compelling arguments). The exceptionally annoying ones I just block.

But, it's a free country and they're welcome to express their ideas here, even if it's somewhat under false pretenses.

The more the joy! If this platform would ever prohibit or discriminate anyone no matter the 'belief' then I'm out of here ! Agnosticism, Atheism, Freethinking,,, are nothing but an answer to a widely spread drug called religions and ideologies. It is unfortunately a necessity to distinguish yourself these days among/from the hurd(s). The problem is that most people with 'holy scriptures' and 'ideologies' (who they mostly know little about) are blinded by their own nonsense. They mostly tend to be 'open' to 'join and discuss' as long as they don't have the upper hand. Once they do have the upper hand they can't even stop themselves vandalizing anything else. And once they killed 'em' all they start killing each others! I would though advise any theist to read their own scriptures/gospels/nonsense well before engaging (at least with me) cause otherwise you'll only make a fool out of yourself and your own belief!