Actually, there a number of spam threads that are gone now. The ones I am still seeing were posted last night. So some action has been taken.
Last night? I still see all the four by "annesmith" posted three days ago, and the two by "weiveisamrt" posted two days ago. Their post count hasn't changed, either. Agreed, I only tend to follow the four Help and Support forums, General, Hardware & Software, Classifieds and O'Club so if something happens on Wishlist I don't know about it. But on those eight I follow I have a method for recognizing every new post since my last visit.