Of course, 99.99% of people just want to play games - but the way I got interested in coding was by hitting RUN/STOP on C64 Basic game, tweaking the values, and seeing what happened.
Pushing proprietary file formats through asm.js is a neat trick and gives amazing results with little effort. But the long-and-potentially-boring "learn yourself webgl for real" route seems more "web". And if someone, someday, gets into game or web dev by trying to cheat at my games (the same way I did, back in the day) - that would be flippin' awesome!