Why are they giving me free coin?
Actually it's not free. Yes you get a token from your bounty but it doesn't mean that you get it for free. Remember that you work for bounty campaigns and the token is the
reward for your
hardwork.
Important and correct observation. Probably many people don't understand that this is a reward for their work and not a free gift. Many companies also define the distribution of tokens for bounty as gifts that may be distributed or not.