That is true .... but what will a seeking person think if they enter a Christian forum and the top threads are about the flat earth, alien "gods" and similar topics? I don't feel a Christian forum is the right place to discuss any conspiracy theory, unless it is related to the bible and can be backed up by facts rather than "I say that it is so".
Then half the threads on this site should be removed. This site consists of mostly opinion.
Actually one of the biggest complaints I see non-Christian make about the site is the restrictions. So furthering restrictions would increase isolation.
I see posts by Catholics against protestants.
See posts by protestants that say Catholics are Christians.
Posts by Christians saying Catholics aren't Christians.
Posts Christians saying once saved always saved.
Posts saying the opposite.
Posts for the law.
Posts against the law.
Posts for too much grace.
Posts for not enough grace.
For the gifts.
That the gifts have ended.
For prosperity gospel.
Posts against it
Posts arguing about what a word translated from the original Greek.
Posts calling others heretics, non-Christian, unsaved.
Name calling. Spite. Anger. Resentment. Bitterness. Selfishness. Callousness. Arrogance. Religious.
So no, when I think about what a non-Christian might conclude about God or Christians from this site, that we have a minority of conspiracy theorists is not high on my list of things that make us look bad.