I experienced also not get paid after bounty I think it's already 3 times 2 of them are scam projects and the other one was they don't distribute tokens managers disappeared.
Even myself had experienced it too.People who do not get paid in bounties either they had participated in a scam project or they are not following the instructions for the campaign so in the end they will not be rewarded of course.In the first place if you think you don't like the project,better find another one,and not making spamming because this will really lead you to be banned.