After some research, I have to agree with you. Its a shame for them to not doing their job, that suppose to be one of their responsibilities. So that much number of the campaigns with regards to altcoins have this issue.

There has to be some reason behind this: Is it because the number of participants are greater, that's why they don't have that much of the time to monitor or to review the posts of every members joined ; or are they just making this as an excuse just to make their work less tiring (sarcastically).

But then, since I've pointed out the Campaign Managers, guess I have also included the bounty campaign managers too. Well just to be clear, we know that the majority of ACMs(Altcoin Campaign Managers) don't have the reputation that of those BCMs(Bitcoin Campaign Managers) on the other side have. What I'm trying to say is that those people who've been gained their reputation as being a CM.

Yes I've totally separated the ACMs and BCMs, but that's not intended, its just simply a legend. Because there are BCMs that also manages Altcoin Bounty Campaigns.