Raging idiots of course.What kind of idiot rage quits because they can't pokemon hard enough?
I really don't think calling people out as "Ash" is working. I think a lot of people just use it as a name based on the Anime, not as it's their name. I've faced about 6 trainers with this name, some DCing, some not. But, tracking who is who is nigh on impossible.
Also, I think i'm getting some luck in finishing all of my battles. The ones that have dc'd seems to have an itchy trigger finger on it though. One bit of luck, and they're gone. Still much lower than autumn though.