I do bounty campagnes of ICOs i'm personally going to invest in. I don't want to sport a signature of something I can't personally get onboard with. I see it as a good way to earn some extra coins/tokens and also help the project get the attention they need for their fundraiser. So my advice would be to do something similar, look for a project you personally think can achieve its goals, if you don't believe in it, then you might want to refrain from participating as you get paid only if the ICO succeeds.