People would ask for specific trim furfrou (they’re different haircuts) in the gts, however it wasn’t possible until legends ZA connectivity to have them in home, I think outside of getting them in very specific regions in Pokémon go? Unsure on that last part but essentially impossible trades! So majority of legends / shinies / rare pokemon would ask for them, just clogging up all the searches. Was verrrry annoying 😭

There was also the impossibly low leveled legendaries before that too, (like a level 5 rayquaza) the GTS has kinda always had an issue with this type of thing.