You just need to research your ICOs better mate.
I've personnally never had a scam on any of the bounties I've done.
Only times I don't get paid is if ICO doesn't reach minimum cap.
Ya exactly,there are many scam ico's but it is our responsibility to do proper research before joining its bounty or before investing in that particular ICO...Well i have been part of a bounty campaign for the first time and it look to me pretty legit..so i think i will get paid