I believe that bounties and airdrops are no longer relevant and should not be written about on such large venues, since this information is not correct, I think that now you can not earn in this direction, but only lose the most important thing, this is time, because time has never been you wont return, but now its better to devote yourself to the theoretical part of trading training, because when the market becomes favorable, then even a beginner can earn on it.
Bounties aren't profitable now rather it has become worthless, waste of time and physical labor. But still you can earn a small amount of BTC from some signature campaign. Trading is more worthless now for the old investors as maximum investors are under huge losses in altcoins investment. If market becomes stable, trading will be more standard way to earn BTC and altcoins from trade.