Other people chain shinies, and I met some people at Magfest that do, but they are lame and I dislike them based on their "look at me, I'm so fucking cool" attitudes about chaining shinies and acting like only they are capable of doing it. It's very irritating, so I have never traded with them. Well, really I've never traded with them because they consistently don't chain anything that takes any amount of real time to get, such as pokemon you can only get with the radar or version exclusives from game pak insertion, or things that are fucking hard to get like beldum. Fuck them.
My first shiny was in Sapphire in the first cave with the arons. I killed it not realizing it was shiny since it was my first encounter with an entirely new pokemon, and for all I knew, it was totally that color. That couldn't have been from more than 20 hours of play. And then I caught two random encounter shinies within a week of each other just ev training.
But the point still remains, I don't know where to find other people who I can trust that have shinies and people on smogon aren't friendly, nor do I entirely trust them.