Well, technically, I wouldn't count them in the competition, as it is just way too darned easy. As somebody said earlier, the only time wasted is when you are looking for someone with the same shiny TSV. Overall, I am personally thinking about banning hatched Shinies in the competition... Umm... It is easier than chain fishing, and chain fishing was quite literally banned for being too easy...
Just saying.
I'm actually surprised it works: Welcome to the RNG Abuse method of the sixth generation!
You don't really need the memory girl, you just to need to know the player's OT and ID and see if it matches up with the shiny.
But whatever; it's too late to collect everyone's OT and ID now.