The problem with a distinct section is that it adds ambiguity as to where to post questions, and it is entirely subjective as to what constitutes an arcane question. Mapping the human genome with Perl is arcane to me, and an everyday project for a lot of others. Name your module is an arcane module to one person and common to another.
No question is simple to the person asking it, so the only person who could decide where to place a question is the person least likely to know where to place it.
I don't have a solution for that (and thus your question goes unanswered. *grin*).