First of all the Republican party set the date on the FL primary, so why blame the Democrats who actually took the time to vote. The delegates should be counted, if I was a voter in FL I would certainly drop out of the party and become an independant. Treat the Floridans with a little respect and give them a voice in this election process.
Also Caucuses are not fair, most people can't take the time to participate in a caucus, a primary election is set to give a fair number of people the chance to vote, and there is no chaos involved. Secret ballots are the way to do an election. Not intimidation from the other side of the room. Being a lifelong democrat, I myself find the party a little bit annoying at times. One man or woman, One vote.