> People are a lot more open when they're not worried about being watched.
I have bad news for you.
As long as you're leaving unencrypted info on other peoples computers you're being watched.
This info can and will be used against you should someone in the right position feels like that.
Only proper end-to-end encryption (combined with plausible deniability where required) can protect you from that, iff of course you're in full control of the keys at any given time.
In any other circumstance there is no privacy on the internet. You're being watched, as the internet became the ultimate surveillance machine by now.
Since Snowden this—since a long time actually quite obvious—fact can't be talked away even by the most ignorant people.
The only sane way to deal with this given reality is to consider just everything done on the internet, where no very special protection measures have been applied to, to be compromised. As you're being watched you better behave like you're being watched. There is no other option, sad as it is.
Btw. in the days of the yore everybody knew that you never ever put any personal info on the internet. This was one of the first things you told people before you showed them how to use a news server.
But today people seem to act without due consideration about just nothing on the net.
For example people today hand out happily credit card info to more or less whoever asks, and than wonder that they get robed. I actually still remember the times when people were saying that it's extremely unlikely that anybody could do business on the internet because "Who would be so stupid to type in their name, address, and credit card number into some form on a 'webpage'? Trusting someone on the internet, LOL!".
Now the trust goes even so far that most people really think that there are "private spaces" on the web, where they're not watched. Well, LOL.