Since 2014.
After about two decades of computer gaming (Amiga500 started it), when 2013 was coming to an end I was playing GTA1 again and wished it had more frames per second. I thought I should make a modern clone with 60fps so I searched Google for "game making software" and of course Gamemaker popped up. Quickly found out GTA1 is too hard for a programming newb, but I've been loving gamedev ever since.
I mostly like how easy it is to upload and make nice game pages here. But so much other stuff too, like the clean look and layout.