Although the whole scenario would be sum up with a few words " Be careful of how you treat things, make a good backup for your passwords" etc but you deem it necessary to explain in details how come about the thread.

Personally I don't like the idea of saving passwords on the internet for any reasons. Just imagine that I saved the password to my email that I use for very important part of my life online and one of the sites it's saved in is compromised and everything I have in the mail got hijacked? So I advise you have a password backup book, diary etc where you can write most things down in a book and not just one maybe two at least incase one gets missing which is not supposed to happen but that other will remain.

I don't encourage saving passwords with third parties like this because it's more risky than it being lost in your hands than to some kind of hackers.

Have you thought of what happened to Laspass? That's just to tell you that none is save expect your own personal backup.