I'm going to start by saying that: I think what people actually want when they say Privacy is client side encryption.
I've been an Evernote user for over ten years and I can happity imagine myself using it for a lifetime. Except for one key issue: my data is shared with Evernote.
I can't have a private journal or store any other potentially sensitive information in Evernote becuase that information is sat unencrypted on someone elses datastore.
The legal field has taken the stance that privacy essentially ends at the walls of our homes, data stored in the cloud doesn't have the same protections as a written diary kept at home.
Without attempting to quantify how much of a person's data is 'private' we can safely say it's non-zero.
As much as I love evernote I'm often looking on the market to find an alternative that is client side encrypted. If I ever find one I would migrate immediately, in fact I would probably become overnight a "one true fan" of that product and tell everyone I know about it because I wanted their business to succeed.
I love the idea of evernote - and the excellent implementation. I would dearly love for Evernote to also cater for my need for true privacy with some of my data.
Please implement client side encryption based passwords.
As a side note I'm guessing that Evernote's implementation of 'encrypted' data is fundametally flawed. I know of one person who lost in excess of a million dollars from storing credentials to access his accounts in 'encrypted' evernote notebooks. Would I be right in thinking that enencrypting a section of a note in one notebook broadcasts the unencrypted data to all connected devices? And of course to Evernote too.