3- Writing down your password rather than saving them on your computer is a better idea. I have a small notebook which I keep my passwords.
I also have a word document which I save some of my private keys, it is a locked document - not so safe I know...
Not just our passwords but our wallet private keys inclusive too, The online isn't safe to save such important information, with brute force those informations can be stolen but when they are stored in documented books there's no fear of hackers , all you got do is to keep it I'm safe and secure location. And it's recommended to out down either your password or seed phrase in multiple piece in case one get destroyed by accidental means you have a backup.
8- KYC issue: I prefer not to do KYC for airdrops or bounties. If their database gets hacked, your passport can end up in Dark web. For exchanges, I always try to use my Driving License instead of my passport for KYC (some of them only accepts passport :/ )
The request for KYC was part of the discouragement I had with chasing airdrops, giving out my data to some unsure projects. I felt the risk is way too much when I asked myself what if reverse turned out to be the case for me if anyone should get access to my privacy clear my funds through the data's I give out in hopes for those airdrops that wasn't forth coming even after several trials.