Those people will flip the tokens as soon as they get them, and it's usually much less people than it looks like due to multi-account.
Also the quality of the post is very low even for hero and "legendary" members.
If I had a coin I would never ever distribute part of the tokens towards bounties; I'd see that as a kick in the nuts to legit ICO participants.
I have always argued that the participation and development of bounty programs is crucial for the successful development of the crypto market. For me personally, this area has become an opportunity to consistently receive additional income. I am sure that bounty is also of great importance for the advertising and success of many ICOs.