Here's my crack at a forum code of conduct: "No spam, stay on the forum topic, be excellent to each other."
Additionally, I recommend we have areas of the forum with additional sets of rules, based on the content.
For example: political art, jobs (posting), self-promotion (requests for commissions) in order to keep other areas free from either of those things, but give users the freedom to post what they like elsewhere.
Maybe even a section for (legal) adult/nudity/erotica made with Inkscape, since what counts as offensive varies widely, and there needs to be some specific area to post so sensitive people (or people at work) don't get an eye-full of something they don't like to see.
Thoughts?
-C
(by legal, I mean no depictions of ANYTHING illegal in the country where Inkscape's servers are. We can spell that out if we need to, or leave it up to the users to look into it.)