Sound so bitter if youre a victim of those ICO campaign. Not paid right I assume? Probably! I think the problem in forum are lack of moderators to punish those spammer. We know there are some who hunt and banned them but not enough as I can see. But the merit requirement for Junior member is bold move and nice decision for the forum.
The thing is, there is no way to know to be completely 100% sure if a certain bounty campaign will actually pay their users or not. A project can simply have a great whitepaper and simply not deliver in the end. The only 100% sure-fire way to know is after the campaign, if they will actually send the coins/tokens or not. Not to mention that the bounty applicants should do their research in the first place on the projects, to lessen the chances of them getting duped.
Same thing happens with startup companies in real life, its the risk you take when working for a new project. The high risk may pay off with a nice reward.