Remember artistic fads?
I think they're kinda silly.
The newest fad in anime art is to make all your characters look the same except for hair and eye color, and maybe clothes.
Opencanvas was a fad I guess. "Nobody" uses it anymore. Now it's all about SAI amongst the amateur artists, and even some of the freelancers.
Remember when oekaki was the shit? And then paintchat. And then something like an intermediate between the two.
People following fads are like sheep...
Photoshop will always be strong amongst them. I am fond of Painter personally.
Gaaaah panicking over my diff eq final.