I think that the issue is some people don't consider Dropbox a good option to store much of anything unencrypted for sharing... This comes down to Dropbox being a U.S. company, subject to DOJ requests and gag orders, and complying with them, iirc.
I'm a little less concerned... though, I use LastPass, I used to use KeePass on dropbox, but lastpass has better integration into the browsers on the platforms I use (less good on android with chrome though, and there's the fee). I don't know that there's a better option that's as seamless for users.
Well 1Password is a good solution, expect this meta leaking and I guess U.S. gov can hoover up all that data and see where you are logging in, but I don't know, you just have to weight the options. Actually now that I'm employed and not a student I could easily afford LastPass' yearly fee for mobile, but the LogMeIn buying them thing is a big no-no for me for now. I have to check back in few months or a year and see if LastPass is still usable. Or maybe I'll just try my hand at writing myself a custom solution
I honestly would love to see something resembling "self-hosted" that used dropbox/onedrive/whatever as a common location for the storage, based on keepass. If it weren't for my desire to not be locked into a browser, I'd honestly just use chrome's synchronized passwords.
I'm a little less concerned... though, I use LastPass, I used to use KeePass on dropbox, but lastpass has better integration into the browsers on the platforms I use (less good on android with chrome though, and there's the fee). I don't know that there's a better option that's as seamless for users.