>>37960338He never posted proof though. He posted sketches.
Astrobunny has been out for two years now, anyone could've made sketches in that amount of time. People have tried to do the same shit with previously real Pokemon before too.
There's a simple way to prove you actually made the digital art, and it isn't hard to do. You just record yourself opening the file, which also shows when you made said art.
If all that is required is being able to draw or sketch art, then I'd claim a fuck ton of questionable artwork if I had the talent, just to fuck with people.
Astrobunny has a bunch of other things going for it which made it likely to be fake(Moon, No back art, not fitting the theme, not releasing with the other starter art, etc.)