Yeah, you can enable those in your profile
Speaking of profiles, I'm working on a little something.
I'm thinking then in the dropdown things in topics (and on their profiles), you can have a link to their wiki page (if they've set one).
Another thing I had in mind would be a set of options (like a dropdown or something), so people can specify what maker they use; RM2k, 2k3, XP, or Game Maker, and then on their postbits, have an icon to show =)
That screenshot is on my local copy of RMRK, not going to add it to the real version just yet, have other stuff to fix up on RMRK first