I've been to Pok Pok at least 1/2 a dozen times and enjoyed excellent food with out a yuppie in sight. As Nick stated, it's more like TAC's special board, more so than TAC's menu. And even if that were the case, yuppies need to eat too, even if they're not as hip as you may think you are. I'll bet your money is the same color as well (shudder the thought). The very hands on owner has a good thing going, does it well and is appreciated by his customers. Pok Pok was voted the best restaurant in Portland this year. Could you see TAC, as deserved as some may think, getting the same accolades here? Not likely.
Actually, there's a movement in Portland that would do well to be exported, of certain fanatics doing very authentic solid food. Whether they're of the incorrect social or racial profile would be your problem and loss.
The place is funky at best, in fact, most of Portland is.
"In pursuit of joys untasted"
from Giuseppe Verdi's La Traviata