Ha! Found the email, recovered the account and found 125.899988 lumens. Wonder what I did with the rest? Not sure if they were 6000, or 500 or something else.
It was 6000 in the original airdrop, and after that there was an airdrop against bitcoin addresses in a proportional fashion (only if you chose to claim them, if i am recalling correctly.)
There was one where you signed up with Facebook and got 5k too. I got quite a chunk of change by getting all my friends to log me in with their accounts.
There was a guy who scripted himself a huge number of the facebook giveaway airdrop. I have vague recollections of his hoard being invalidated via a hard fork or some other method!
It is not from a bitcoin giveaway for sure. I guess I just played with it, too bad I can not see the transaction history.