Similar thing happened to me about a year ago, I was relentlessly searching for airdrops everywhere I could find it on the internet when I've actually not even read about what airdrop means. I also participated in some airdrops on telegram using telegram boot, which all turned out to be fake. It's just best that one should study well about a project before embarking participating in the airdrop and if all test proves it to be scam, one should just shut the thought to participate in it off, regardless of how attracting the worth of the airdrop is.