I got a Shiny Charmander with the Masuda Method after only 60 eggs *_*
That being said, while you make valid points you don't cover the biggest thread to their value: Hackers on the GTS. With a 100% shiny encounter chance those can flood the market with shinies. While the 3DS has been pretty save so far it is already possible to dump Pokemon to your PC and modify them (on X/Y), reinserting them to the game isn't yet possible, though.
You have a pretty nice voice o.O








