They dished it out pretty well too early on. Santorum bashed him daily and viciously (and rightfully so) on Romneycare. It's ridiculous to say the ads had an effect on the way conservatives voted. That's like saying conservative voters were uninformed and stupid enough to be swayed by the ads. How do you explain the conservative vote for Romney in the exit polls?
If you’ve seen some of the articles interviewing voters you know all kinds of them voted for Romney for some of the stupidest, most vapid reasons imaginable. There are also some Tea Party groups which endorsed Romney, which shows they’re either corrupt, infiltrated by the establishment or just plain stupid.