Well, for me, the most important of all information contained or mentioned by the op, is one that Says we should never connect our real wallet to an airdrop site, and by real wallet, I mean our main wallet where we hold our funds/crypto investment.
It is really advisable that we always endevour to create a separate wallet that is dedicated to airdrops, fund it with a small amount of the native token or coin of the blockchain that the wallet is created on, this is for gas fees.
This practice will ensure that we never get scammed off what we have already achieved, while in chase of that which we are unsure of, just like it's commonly said that a bird we already have in our hands; is more valuable than millions that are flying around in the air and bush.