YouTube clobbers my Internet on upload. Anyone else?

I have noticed that every time my g/f uploads a video to YouTube using their current uploader that my internet connection gets completely degraded, as though it's using everything it can grab.

By degraded I mean my 10Megabit up / 1megabit down and average 50ms ping through speedtest.net gets clobbered to 1.8ish megabit up / 0.4megabit down with pings of 300ms (or see http://www.pingtest.net/result/20606910.png)

My question to all you HN'ers is have you noticed problems like this? Is there any way to contact Google and tell them about this directly?