I would call what you describe under "Language" as "Owning your tradition". And it is simple enough to filter for in forum participants: have an application process that consists of "read these two examples, the 'do' and the 'do not do', then write an essay following the 'do' example on any part of Genesis you like for an audience of someone who has never heard of the bible."

This will allow you to filter on those who are at least able to own their tradition in speaking about it; whether the privileged will resist the temptation to not do so is another question.

But it is vastly easier to control a group by controling its membership than to police the general public.