-Look out for the bounties and airdrops in the bounty and airdrop listing- website.
-Look for the response it gets on bitcointalk.
-Read the whitepaper of the ICOs properly and understand the tokenomics.
I prefer these to be some of the basics that we can do in order to stay aware of scam bounties and airdrops.
For Airdrops, i feels it's no point doing so much research specially because Airdrops don't pay much. The amount of time you will invest on researching, you might as well click the - like facebook, like twitter, follow linkedin, join telegram button.
For bounties, probably yes!