From the OP at Slashdot... "I know my father is not paying for a 10+ Mbps connection. Is Comcast giving priority to popular speed-test sites?"
The thread appears to have spiraled downward from there.
To bad. I'm no Comcast fanboi but I think Comcast came up with a winner with PowerBoost. Very handy for those patches, updates, small Freeware downloads. Q for Comcaster's, how do you speed test removing the PowerBoost effect ?
Don't be such a FanBoi! Sheesh! But yes, PB is great