I spend a lot of time in Oja for a simple reason: I like the place, its looks and atmosphere.
I don't spend time in taverns because I have nothing to do there. I RP mostly around smiths (and I don't craft much). I find Trasok's better than ever since a forge was added outside. It's just easier to meet people, crafters, passers-by, anybody to start a chat with. Second, most of my RP would be in the wild, including of course in the mines.
One more thing: it is true that I RP less since spring (or summer, or whenever the major engine change happened; I don't recall exactly). The reason is simply the very high frequency of client crashes. If the statement that there is less RP than before is true, that may be a reason (it's the only one for me). And, of course, it's just temporary.
There is one other thing which, I believe, would add life to Oja: to put some of the tavern's kitchens outside (like Trasok's forge). It would suit the weather and local lifestyle, and make people more accessible. Even tavern tables should be set outside. The carpet shop is the example to be followed.