The GTS for me has been a total let down, I go on there, look for the Pokemon I want and usually find it, the person wants an evolved Pokemon like for example a Charizard. I usually don't have one on hand so I have to go level up and evolve a Charmander, no problem there. I finally get the Charizard and head back to the GTS to do the trade only to find out the Pokemon I wanted (the one that wanted the Charizard anyway) isn't even listed anymore. What gives? I didn't even spend that much time away, are people that quick to snatch up Pokemon from there?
I'm also worried of receiving a hacked or cloned Pokemon, how often does this happen? How do you deal with it? Do you just breed it real quick then release the hack?
Also what is it with there being different listings for different games, for example lets say you go looking for a Shieldon on your Soul Silver version and find out it's not listed. So you hop on your Platinum Version and search for it on there and find that is listed, why is this? Are the listings completely different for each different game title?