You just got lucky. Usually airdrops are complete waste of time, our only real resource in our possession.
99% of airdrops are made with the intention their 'devs' to make quick money.
I have seen some airdrops like eBitcoin which gave people some good profit and initially i never bothered about these drops as there are a ton of air drops and ICO's and it is impossible to follow everything and majority of the tokens are just a waste of time and OP was a lucky chap to get a good profit and i am not sure which drop that is.
