Where has the practice of sending screen shots as source code come from?

[Dan Stromberg]

On Sun, Jan 28, 2018 at 8:24 PM, Dan Stromberg <drsalists at gmail.com> wrote:
> If an NN can ... play go on a level that can beat the best human in the
> world

Correcting myself: I think Google's AlphaGo used more than one NN,
plus perhaps a little traditional reading algorithm.  So I probably
should have said "If NN's can ...".