The fact is its always a bad idea to dump all your tokens you get from bounties unless you promoted a not too good project ,I've seen few bounty projects that hunters dumped and later the token price surge in value for example Gowithme bounty ,so how many of you dump gowithme token? The token did 10x already
Hold is a risky option and needs patience. And for bounty hunter, they have worked for a long time and they need money to spend on their lives, so they will choose to sell when they receive the token. Very few people can hold tokens from the bounty