If Syd breeds a shiny Petilil and had great wifi, she shouldn't share her success anyways. It's her baby. I guess you can celebrate by rubbing it in everyone's faces in a shiny thread or even the shiny hunter's club! :o
Well, I haven't seen any Shiny Rotom that I've seen that have good natures, well at least on my time on the internet. Besides, what good is it if I keep it just to myself? I understand what you're saying, though I want to share my success!
I only share like 3/40 of my non-rng shinies even though I can clone.. Don't you wanna keep some shinies special? They're proof that you won the game. ^__^