Cable company FUD. All I have is anecdotal evidence (DSL Reports] should have more information), but the throttling occurs whether or not you happen to be running ther P2P software.
What's more, this is affecting ervices like PSN and XBox Live, but because WoW is just so huge, it's the one attracting all the attention.

But... that completely invalidates your point...?

BakaHoushi Sed:

Which is why Pixar vets don't currently control Disney, and Disney itself doesn't distribute Studio Ghibli films in North America OH WAIT