Hello, in 4 weeks I will become Mr Member, but I signed up for bitcointalk 8 months ago, is it possible for me to join the airdrop or do I have to complete a year?
You can not sign up/participate until you've met the requirements.
How many coins does it take for a masternode?
25 000.
Is it still profitable?
As long as the price isn't spiraling downhill, or zero, running a masternode is always profitable. BSD has a very cheap entry point for a masternode ATM.