I found this point in the new user welcome confusing:
Given that we routinely tackle "hot potato" questions, it sometimes happens that we get questions challenging basic science, or answers challenging scientific consensus. Both are allowed and welcome.
While you can count on our community being respectful, be advised that in general science is the ultimate judge here. If you don't agree with or trust the scientific method, you may be on the wrong site.
My reaction was basically... "wait, what"? You're allowed to challenge basic science? I find this strange because it raises a sort of "where's the line?" question. Can I challenge basic logic? Can I challenge geometry? Can I challenge other mathematics?
The second point seems to contradict the first. This is resolved by giving me a link to the "don't be a dick" question, because of course, just what I wanted, a long unrelated piece of literature to read to alleviate my understandable confusion.
After skimming this article I still don't know whether I'm allowed to challenge science or necessarily what that means in this blurb. I'm partly curious for an explanation of this but more concerned that the New User intro is confusing. One solution would be to answer here then link to that answer.