Are those spreading all over around especially in this forum known to be an "airdrop" is considered an airdrop or bounty campaign since some of those are requiring people to fill up some of the forms or need to sign up or follow some social media accounts, etc?
Since you did some task or work to get those coins.
We can consider it as a bounty campaign. Airdrop should be distributed to all of the participants as free without asking them any requirements and to do tasks. However, on these days they need to sign up or follow on their social media to become part of their community to become eligible of receiving the airdrop. On this kind of scenario, this is clearly a bounty campaign and not just an airdrop that they give for free.