To all the vuvuzela-hater-haters, yes they may be a nice piece of South African culture, but I'd prefer it stay in South Africa, not be streamed to my TV when I just want to watch a good game of soccer. I personally own a vuvuzela, courtesy of a parent of mine trying to get their kid a gift related to an awesome sport, and holy crap they are loud. If I was physically at a game, I would have to wear earplugs or leave, especially if the guy behind me didn't feel like putting his down.
To wrap up, I don't have anything against the vuvuzela itself, but in the future, please avoid encouraging everybody to buy something that makes noise. Make a world cup flag, or official world cup binoculars or something that will still add to people's enjoyment without taking away anybody else's.