" . . . and the people who do throw them on the GTS want something along the lines of Mew, Darkrai, Meloetta, Keldeo, Manaphy, or Arceus."
Personally, I consider those kinds of people to be "stupid" and "annoying" for asking for something that is impossible to get or "looping" for the same thing or something similar (example: Darkrai -for- Celebi --> Celebi -for- Darkrai - or - Shaymin -for- higher/lower level - Shaymin, etc.). I'm not trying to troll anyone; just stating my honest opinion. though I should stop talking (/typing?) before I get myself into trouble or start rage talking.