An ad hominem would mean that I am saying they're wrong. My argument is not
Google is an advertising company, therefore SPDY is bad.
My argument is
Google is an advertising company, and the largest
single entity on the Internet, and therefore, their
actions deserve a healthy dose of skepticism. I'm
not sure that we've been giving them enough skepticism.
SPDY does have good points, and bad points. I just saw a lot of chatter from people who want to ignore the bad points simply because of where the spec came from.