I think its a losing battle. Let's say you ban end-to-end encryption. Maybe the next frontier is steganography, where I post some cat-meme on imgur, except on

I think its a losing battle. Let's say you ban end-to-end encryption. Maybe the next frontier is steganography, where I post some cat-meme on imgur, except one bit of the blue channel in each pixel is encoding my nefarious secret message. Do you ban posting images? With the number of spam emails that look like the output from bad Markov Chain generators, you could send messages in clear-text, using a simple traditional code, and it would be drowned in the noise.