You have a good point but at the same time if every projects start paying before bounty it still doesn't stop the fact that those coins can be worthless or scam, you can get paid of a token or coin that won't be useful for anyone,
Secondly the moderators on this forum have enough jobs on their hands, that won't be a easy task for those who look after this forum, moderators are humans like us and not super humans
I really and totally agree with what you just said! I participated in a bounty around August 2018 and we were paid weekly but uptill now the coin remain a scam coin. I prefer to participate in a bounty that last very long but at the end I benefit from it as I have do from bounty in the past. However I see all this as luck becouse some of the project we thought are genuine are scam and most time it is at the end of the campaign that we discover this.