Okay so earlier I came across a site that claimed that it's possible to get bitcoins for free by just; playing offline and online games, watching ads and videos, participating in airdrops and so on...
I saw that 1 BTC was allocated as the main prize of the contest, but I do not know how honestly the results are summarized and indeed this bitcoin is transferred to the winner. It is more realistic to get a Bitcoin particle through a faucet, but this is too small a part, which is measured in cents.
I thought the OP should have gotten a lot of answers and also found a solution to his question, in fact you are quoting his post after 5 months since he created this thread.
Since I signed up for forum account until now, I don't think I'm too interested something free like airdrops or anything else. Even I had to forget about the bounty part which is actually still productive until now, but I'm too disappointed with that part. I think a lot of people should be prepared for the fact that expecting something free is ultimately a waste of time, but of course every now and then some people are also lucky enough and make a decent amount of money.