You cannot blame bounty hunters for dumping the coins when they get them. The reason that we dump the coins as soon as we get them is because we understand that many of the new projects will not last for a long time in the market and we do not want to end up with worthless coins in our wallets when the project finally ends up crashing.
That is why you should always do your own research to find projects with real potential.
It's such a shame that although Bounty Hunters do provide value as a community we are really beginning to get a bad name in this Industry. Primarily for two reasons.
You could also add a third point to your list: followers with no interest in the ICO. Let me explain: sure, a 50k Telegram group looks nice, but by now everyone knows that 99%of the members are from bounties/airdrops, and does not plan to buy the tokens at all. They only care about collecting some free tokens, and possibly dumping it after the first listing.