You should check out my chrome extension that lets you block web sites on HN. You could be viewing three fewer Forbes stories about Facebook or caffeine addiction on the front page of HN right now.
Besides which, Zynga has been innovative and has come up with new ways of spreading games. They might not have much of a technical edge, but it's not like Zynga has never done anything new.
"Look at Facebook. The company didn’t invent anything. Instead, it just picked a better demographic—18 to 35-than LinkedIn or MySpace."
Now look at a comparison of the market performance of FB and LNKD [1].
[1] http://www.google.com/finance?chdnp=1&chdd=1&chds=1&...