that is not "airdrop" that is a "payment" for a job that they do. the job is small and meaningless (an advertisement of sorts) but it still is a job and they are getting paid for doing it so you can't call it an "airdrop".

a real airdrop is when the Byteball team gave away coins to anybody who owned bitcoin at a certain block height and downloaded their wallet. another example is bitcoin-cash which gave away free coins to anybody who had bitcoin.

neither one of airdrops or these payments have ever been good for beginners. they both add complications and require the beginner to download another wallet and most of the times the altcoin wallets are pretty bad and in some cases some of them even contained malware.