Not sure it's you're fault. Really, only reason I ever figured out about your first game was because the description of Pointless Platformer used to mention that it was parodying your game, minus the tits. So, no, probably wasn't your fault. I think the shapes thing started just because Stamper thought it'd be hilarious, and the aftermath definitely was.
Brundaty2
No idea. I think they just decided to do something completly out of their usual flashes because they were bored. Seeing how it got the attention it did. More artists are making more of these instead of someones hard work being on frontpage, they have those jokes there.