"Many Drows" around Soubar is just not Lore-supported. I am all for promoting RP between Players, and really, the Upperdark was this big fat addition to the Server for where the Middledark and the Surface characters could meet and do whatever RP they need to do, under some semblance of Forgotten Realms lore.
The Upperdark should be dangerous, seriously dangerous, but alas, a combination of Low CR areas and limited NWN2 engine mechanics, make it only remotely so.
The Middledark should be dangerous as in "expect to die there" unless born there. This has been said so many times now!
Lowerdark is just impossible!
The Surface should be like the Middledark for ALL BEINGS BORN OF THE UNDERDARK. One should remember that it took Drizz't YEARS to be able to adjust to the Surface. Right now, it just takes "making a level."

But the Surface cannot be inherently so, since it is mechanically limited by CR.
The only thing left, after trying to teach with Lore and trying to teach with hand-slaps and trying to add OOC Rules is mechanics designed to dissuade and prevent what wasn't learned. That sucks, yes, but what else is left?
I mean, maybe what can be done, instead of taking away the Loot/XP from being on the "other side" is to have Othersiders auto-receive a YUUUGE penalty, like Light Blindness on Speed, and Darkness Suffering on Speed, so that while possible to do your OtherSide runs, you're actually seriously crippled...like how it should be in Lore outside of our limited game mechanics.
How about that?