I have been going everywhere for some tips on Pokemon ORAS and everyone is saying that Pokemon GTS is unsafe.
I want to know why because I've been thinking of putting up Shiny Pokemon, and I don't want anything to happen to them (except a person taking the shiny and giving me a good Pokemon!)
Best Answer
GTS is very simplistic in how you can request Pokemon, the only things that you can specifically restrict are:
Thus stuff like Individual Values (IVs), Natures, Abilities, whether it has the 6th-Generation Pentagon and Shiny values cannot be filtered on. You can use the description field to request these specifically, however it can be ignored by the trader. There is no 'take-backsies', and no recourse should someone trade you something you don't want.
In summary, what this means is that -should you put a Pokemon up on GTS- you risk getting traded a dud for your hard-earned Pokemon.
So what can you do?
Of course, when trading shinies, I would recommend: