Maybe this web wallet trying to avoid those abusers who used multiple accounts to farm the airdrops in XLM,
Could be, but there are other ways to do that because in the end, you can only prevent it. Others who has the ability to abuse the system will still exist.
But hey do you think blockchain.com will just give out money without a motive that ofc would benefit them? cause I don't think so. I mean companies don't do airdrops because they want to give out free money, its because they want to promote their coin.
Bottomline is, there must be a reason on why blockchain.com required kyc and it must be some kind of marketing strategy again, that ofc would benefit them.
one of the trusted web wallet is this blockchain.com. Many crypto enthusiasts are currently using on this web wallet those who can't afford to buy in the offline wallet because you need to purchase on it.
You don't really need to use hardware wallets, you could get a desktop wallet which is free and is more safer than web wallets.
I personally passed my KYC on that web wallet I didn't hesitate my self to exposed my personal data because I trust that site.
Well good luck to you. But the thing about trust is, it doesn't guarantee anything, its just there to make us feel safe. At the end of the day, we're all just betting on chances.