Well, i have participated in many bounties and I did say that the op is right in some way, but I will still say that for persons like me, it depends on the seriousness and potentials of the project, in the course of participating in the bounty, I get to know if the project have the potentials to last long and grow in price, tokens earned from bounty of this kind of projects I will rather keep, and sell in the future for a better price, but those that don't show seriousness, I sell immediately I get my tokens.