I guess there will be an "Drow character" mod to add those banters. Oddly enought evan IWD2:s original story lacks terribly in this area. It is way to easy to get away with using an drow character. Npc's accept you to easy, this buggs me since I want to have the challange of everyone hating me until I prove to them that I am not there to kill them. Imagine talking a stroll in Jerusalem dressed up an gestapo uniform and you get a hint of what I expect for reaction. The madman in the gestapo uniform can just change clothes to fit in but a drow don't have that option.
Well, the only reason they accept the Drow Characters so fast is simple, they're in a war.
They need all of the help they can get, after all! Sure, there is prejudice, especially at the begginning if the soldiers outside the boat encounter a Drow PC first out of all of the PCs in a party, but desperate times call to put aside all differences to work toward a more favorable future. Sure, it doesn't always happen, but most people do put aside their differences.
We're also assuming that the Drow PC has his or her head hooded from view.