What is the biblical basis for answering questions about Christianity under the ethical rules of conduct on a non-Christian platform on the Internet?

Most groups of Christian faiths consider their beliefs and associated ethics are above anything the world can understand. Nevertheless they will condescend from their lofty and glorious faith and submit to rules of conduct created by essentially heathens as far as they know. For example, to some extent the pagan rules might discourage a high level of preachiness or other appearances of rude intolerance, if it is a platform serving as a kind of public square where all ideas are allowed expression. There may be a presumption of equality in them, for the sake of making such a "public square" feasible, *even though* most participants don't see any equality in their faith with other faiths at all. To some extent the American Constitution is a historical example of establishing similar guidelines of legal behavior, allowing religious views with extremely opposing faiths to co-express a common religious freedom of speech. Inside the closed doors of each church, a level of an appearance of intolerance and preachiness is arguably an essential part of their actual belief system. This means presenting the faith in a different way actually misrepresents it to some degree. After all, how could someone present what they believe to be the "very words of God", without at some point thinking that an "authoritative declaration" is the most appropriate means of communicating? So we have a potential dilemma. What is the biblical basis of submitting to the rules of a pagan platform when depositing within the answers the Word of God, where the answer is essentially recorded as a mere opinion that can be voted up/down by pagans as well as Christians? *Note*: I am a contributor to such a platform and I do think there is a biblical basis for doing so. **My question is: what is the basis.** I have not on my own thought of an answer, so far I just assumed that there is one, but find the question personally interesting to raise.