There could also be special titles as well given for certain things done in the world. IE: Exploring a place nobody would normally go. When registered in... let's say, "Title Index" it gives a permanent stat boost (albiet small.) it accumulates of course, so more titles = better stats from it. The titles would have to be moderately hard to get of course. GMs could host events where the community could name said titles based on what is to be done.
For instance, getting somewhere underwater without drowning (IE: if a specific area had the breath meter) would be called "Expert Swimmer." Or something creative like "Merfolkborn"
You could also create special areas just for this purpose alone, IE: DotNuri from LaTale. In Lime, you could have like, monsters that do no damage, but have huge knock back on your character (and a chance to cancel.) Instead of said monsters being normally modeled like Lime Odyssey monsters, they could be more... Nintendo 64 styled (as well as the landscape), and have a retro theme playing
in the background.