Telegram airdrop channels, as a rule, have the purpose to inform their subscribers about new opportunities of getting free tokens as well as provide instructions on how to get them. These channels can be useful for people who want to participate in airdrops and want to get updates regarding new ones regularly. However, it is important to remember that not all airdrops are legitimate, and some of them can be scams. So it is crucial to do your own research before participating in airdrops even if you discover them from a source you trust.