It's not always easy to tell what campaign is real and what is fake. Especially at the beginning they may look the same. And it is not up to the admin to estimate the validity of the campaigns. For example, if Ethereum doesn't care what kind of ERC-20 tokens run on its blockchain, what right has this forum to do so?
In addition, from what I've seen, there are very active users of this forum who try to fight scam actively. Just take a look at the
Scam Accusations board, and you will see what I mean. But, at the end of the day, each participant has to do their due diligence before joining a campaign as well.
Another useful thing is to pay attention to the campaign's manager. If the manager is prominent member of the community, your chances of getting paid at the end are considerably higher.
I suggest to try to follow the campaigns of
these anti-spam bounty managers.