It is important to always be careful and do your own research before participating in these types of events. Many projects use large giveaways as a marketing tactic to attract a lot of investors to their token projects such as airdropping large amounts of tokens to get a lot of holders in their wallets. Especially in today's volatile market. It is better to learn more about the projects you may be interested in, and maybe later find new opportunities in doing so, although not all airdrops are bad, but by giving away a large amount of value, it may just be their technique.