Use good old steganography

Everybody likes cat pictures, that's why they are 30% of the whole internet traffic.
So why not use them as a communication medium. The following demo is using an adapted version of my good friend Peter Eigenschink's hideme.js, which is a JavaScript library for encoding and decoding data in images.
Click on the cat images in order to decode them.

What you write

Patrick W. @patrickwied
Steganography is awesome!

Mark Z. @mrz
No. Don't worry, we'll get your messages! ;)

What? I thought anonymity was a thing?

Anonymous guy @xxox
If you have nothing to hide, you'll be fine!

What traffic sniffers see

Give it a try