For the past year I've been on my soapbox preaching the gospel of encrypted emails to anyone who would listen. I'd talked to some people about it before, but I knew that the tools were too difficult for most people to wrangle, so there was no point in it. But then I discovered Mailvelope and decided that this made the difference. Now, the majority of people could easily set up a key pair, share their keys, and start sending all their mail with encryption. But still, not many people listened.
Then the Snowden revelations came out, and a few more of my friends read my posts on encrypting emails, watched videos on YouTube about how to set up email encryption, and got themselves set up. Lots of others read the news and looked for information about email encryption from other sources. The daily adoption of new PGP keys has risen 300%. Still, most of us are sending virtual postcards to each other most of the time instead of sending most of our mail in virtual envelopes. WHY?