Time spent on this kind of stuff could be put to so much better use, perhaps learn a valuable skill which you could then offer in return for Bitcoin.
If I had to choose between spending a week looking for giveaways or other free crypto-related stuff or spend that time learning how to build a website or programming, I'd choose the latter. It's a far better investment of my time.
Although I have a comfortable trading/investment portfolio and I do have a full time day job, I still make more money from shitcoin airdrops and giveaways than in my day job, a lot more.
If you also do some bounties, you can make really good money.
Check out how much it is worth now NEM, Decred and Ripple airdrops.