What Romney means when he says Obama "attacks success"

I've always thought that Romney's claim that Obama "denigrates" (blackens) small business owners and "denigrates" success was just one more calculated lie, of a class with "apologizes for America" or "threw Israel under the bus." Tonight, during Romney's nomination speech, I understood it's personal.  After a roll call of allegedly flourishing Bain investments came this:

These are American success stories. And yet the centerpiece of the President’s entire re-election campaign is attacking success. Is it any wonder that someone who attacks success has led the worst economic recovery since the Great Depression? In America, we celebrate success, we don't apologize for it.

We weren’t always successful at Bain. But no one ever is in the real world of business.

That’s what this President doesn’t seem to understand. Business and growing jobs is about taking risk, sometimes failing, sometimes succeeding, but always striving.

 Yes, the risk-taking small businessman Obama is guilty of blackening is Romney: