How often are you scammed for bounty rewards? It's no surprise some devs are scamming the bounty hunters to save costs. It's always upsetting to do a good work and finally this time is wasted if the devs don't send tokens. Scam means if you don't receive tokens at all according to the initial rules when you joined.
How often were you scammed in the past considered in percent of all campaigns? How many were paid? And do you have an idea to avoid it?
As experience, most scanmed encounter in airdrop. So much better to participate in bounties even though some not pay but its better than airdrop. And interms of avoiding, make a time to review on the project youve participated by checking there white paper, roadmaps, people involve if legit, review via social media and project status if its operatinf currently in the market.