Every manager has different style, normally for yahoo he has a lot of participants in single campaign so he will prioritize those who are wearing signature already. For Hhampuz, I observed that he accepts applicants even without wearing the signature, so with knowing these pointers, participants will be aware, and I wish they will see this thread here.

I agree with you tranthidung that the merit system has help this forum improve, we don't see lots of spam anymore these days, and manager did a good job for that as they will only select applicants with great posting habit and good numbers of merit and these will discourage the spammers.