If you are newbie and you are looking for ways of making some Bitcoin and other altcoin, be very CAREFUL with AIRDROP campaign as many of them out there are out to scam/milk you with the little ones at your disposal. Sometimes, they are out to get your personal information like email address, etc and sell it out for money.
Some of them will tell you to send some amount of BTC or ethereum to their address as fee for you to get the aclaimed airdrop reward of which they will later run away and mute their telegram channel.
Be warn is to be armed.
Not only newbies there are still old members here who still goes for airdrops, and you can't blame them, some airdrops are profitable but that is out of 100 or more airdrops, but if they are compiling email for spamming, that will not do good as it will only end up on spam folders, and of course sending funds to get your airdrop is a big no no.
Newbies usually fall traps easily, so it is not a good idea to advise any form of an airdrop to the inexperienced users. The spam emails and useless tokens are the known part of the story, there are more on background of the process. New accounts open a different version of the same airdrops and ask the personal details which can be used for decrypting the identity or sensitive information. This information is useful for finding the passwords on the crypto exchanges.