One of the campaigns I joined ran for 20 weeks and that is approximately 4.6 months and their coin is not yet listed that's why my tokens have no value yet. (SMT) coin. Did you complete the weeks in the campaigns you joined? And are joining bounty campaigns that are managed by high ranked members? If not, next time you should because, high-rank members that handle campaign are more capable of knowing which project is a scam. Right now, I don't know if you joined scam projects but I think you should still wait for those projects' tokens if you really trust them.
Some of the signature campaigns are so much of delay when it comes to token distribution because they want a clean and fair distribution to all and that no one will not say bad words to them. As of now i am waiting for exchanger of the last time i joined. It is too slow because almost 3 months when the ICO ended and yet there is no exchanges yet.