No actual WOLF staff members (Admins, Mods, etc.) post here. At least, not in this thread. I'm a tagholder, but that only means I'm semi-active on the forums. I wouldn't want to overstep any boundaries by breaking into another community and promoting something.
WOLF Thursday is basically just the time when the server was most populated and someone (Carrion, I believe) started pushing for it to be a weekly event-like thing (although, it's really just normal pubby play with a bit more players than average on a North American server).