I think even Reuven's graphic artists could post to the most technical of bboards and get a good answer.
Could the graphic artists post on the current OpenACS bboards and get a good answer? You betcha. But from my experience, they're going to be a bit intimidated and/or embarrassed.
I agree that it's great that everyone in the current OpenACS community can read through, use, repair, and contribute to the code. But as OpenACS becomes a more widespread technology, many people who aren't able to or interested in modifying the code will be joining. Making them feel welcome, and trying not to intimidate them, will go a long way toward helping spread the OpenACS gospel.