There sure are a lot of disconnects from people who are about to lose. It's pretty annoying, and it completely throws off my win-lose record. Most games have a penalty for disconnecting (for Mario Kart Wii, you lose more points than if you had placed last; Team Fortress 2 puts a "RAGEQUIT" marker on anyone who disconnects too much; and Marvel vs. Capcom 3 matches up disconnectors with other disconnectors), so it's a bit baffling that such a popular and high profile game like Pokémon Black and White has absolutely no penalty.
I would've hoped that you could at least store Battle Videos of matches against people who disconnect at the last second. Even if there's no other penalty for ragequitting, you could still show to all of the world that you just went up against a sore loser.
Heck, I remember one time I faced against someone and lost, and I took the loss without disconnecting. I had a rematch against him, and this time, I won--sure enough, he disconnected. Apparently, my politeness had no effect on him.
I would've hoped that you could at least store Battle Videos of matches against people who disconnect at the last second. Even if there's no other penalty for ragequitting, you could still show to all of the world that you just went up against a sore loser.
Heck, I remember one time I faced against someone and lost, and I took the loss without disconnecting. I had a rematch against him, and this time, I won--sure enough, he disconnected. Apparently, my politeness had no effect on him.