This is a good thought, but it's not often this becomes problematic. When it does, it's usually resolved fairly easily with a reminder. I know how it is to be clicking on a link from the recent posts list and not realize where you are when you get there. That said, we don't see too many problems as a result. There are forums where debate is strictly forbidden (like the Christian Talk & Advice), ones where we only encourage members not to debate (like the Lounge), and forums that are set up for it (like the Apologetics & Theology Forum). If it does become more of an issue, this will be a good thing to consider.