If the ratio of line and reserve flying to open time remains about the same as prior to furloughs, I don't see enough of a problem to condemn those that pick up open time....assuming that the pilots aren't violating their own CBA. If the ratio changes in favor of management, then yes, there's a problem. I wouldn't call the those picking up open time scabs or anything, but I might have a beer with them and discourage them from picking up any more open time.....again, only if the ratio of open/line/reserve flying changes drastically.
Either way, I wouldn't pick up open time. Heck, even if we were fat pilots, I wouldn't pick any up....I'd rather be home playing golf.