Far from it, on a scale of 1 to 10 as investors, I will give them a two. The Bounty/airdrop hunters make up the group of people who dump their tokens at ridiculous low prices the moment a coin/token hits an exchange. Majority of them, have zero idea of the roadmap of the coin and hardly read the whitepaper.
This is not exactly correct... Bounty hunters are investors too because they have put in their time and work to help put the project, so they are rewarded for this..
On your second point, bounty hunters are not the only ones who dump their tokens at ridiculous prices. Recently, a lot of project lock the reward for bounty hunters, while the private sales and regular ico investors gets their tokens, even at that, the prices still dumps..