Then they were misinformed or just weren't paying close attention to the rules and to what was happening in the election. Even if they didn't know, they should have. Did you contribute to this misperception by some of the caucus voters?
Your comment also actually highlights a reason that not many Romney supporters showed up. Outside of the fact that these caucuses were completely unadvertised and so a tiny portion of the population even knew they were happening, those who did know and care about the outcome also knew that the statewide winner had already been decided in the primary. They didn't much care whether Johnny or Suzie was the one to cast the ballot in Tampa for Romney. I tried to get a few friends who are huge Romney supporters to attend with me, but they didn't think it would make much difference so they didn't come.
By the time the caucus was occurring, Santorum had dropped out of the race, and it had been announced that Gingrich would drop out the following week. The outcome of the primaries was no longer in doubt, once Santorum was gone and Romney got 60-70% of the vote in the April 24th primaries. If Santorum's voters had gone elsewhere and hadn't voted for Romney, then there may have still been a race, though Romney would have still had a massive lead. But with his lead and with voters going for him in such large numbers, the outcome was inevitable. It was like Romney was passing Kenmore Square in the Boston Marathon and everyone else in the race was way back, passing the screaming girls at Wellesley College. Santorum had already stepped off the course and given up. Gingrich stopped and got distracted by the girls, and was probably just going to stay where he was. Ron Paul was still running and was motivated by the cheers, but also knew that unless Romney pulled out of the race (for whatever reason) or unless he could pull a Rosie Ruiz and take the Green Line to the finish, he was not going to win.
So sure, Ron Paul was going to fight up to the convention to get as many delegates as possible. But he knew that he wouldn't even possibly come close to stopping a Romney nomination. I personally think it was pretty clear for a while that the Paul campaign knew this and wasn't seriously thinking they were going to win the nomination, but had defined success in this race differently. They've been trying to tell people that over and over again, each time being a little more adamant (with the email to delegates a few weeks ago being the strongest statement). He is fighting to get as many delegates seated as possible, but he doesn't want them to break the rules. He knows that even if they all did break the rules, he'd still lose by a huge amount. There would be no upside, but there would be the downside of him at least partially losing his reputation as a "by the book" guy.
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