There are many scam projects and sometimes it is difficult for us small investors to find out if a project is really serious. I've been fooled by Pincoin, DCX, RouTrip and others
I haven't been scammed by ICOs and bounty campaigns but my time and efforts.
some of the bounty campaigns that aren't paying and failed ICOs are TNG as Tangerine Exchange, RPay, Librium, Monartis, MimiCoin, Denaro and other bounty campaigns that under Sylon and Needmoney.
I don't blame bounty campaign managers for they are not the responsible for the scam and failed ICOs.
I just need to exert more techniques on how to spot a good over bad or scam ICOs.