We do more damage than good harassing tailgaters that don't come into the game. Our program screwed itself by not having the best product possible inside the stadium for a decade and more. It created a culture of staying at the tailgates. That's a hard thing to break - eating, drinking, socializing. I'd look for ways to promote tailgaters into CF. Winning is obvious.
I wish Hud had the time before kickoff to walk through very specific known large tailgates and ask them to attend the game. I used to think we should do a live cam deal where a former well known football player would walk around and ask people (well after kickoff) why they aren't inside. We tell these people that we're posting the videos on the big screen as part of a future halftime presentation, unless we see way less of this behavior. But again, I don't think negative selling works.