Yea still... "Try our product because we're great and we'll annoy the crap out of you until you do" might be a good way to mind-worm the advertising into someone but it doesn't exactly engender good will.

It's like one of those companies that feels the right to force a full page ad on websites that needs to stay up for x seconds, or requires some special user interaction. It is (very unfortunately) effective and making people remember your brand but people hate you for it.