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?
The truth is that up to 81% of ICOs are fraudulent. So the scam was unavoidable, and I was cheated a few times. ICO scams are commonplace, but bounty managers are deceptive then unacceptable.
To avoid this I often make bounty of the famous BM, depending on the pool will be divided more sure to receive the bonus.