Just like FalKoopa and BabyCowLand said. The numbers from the RTC thread are arbitrary at best. The point of that thread is just to see what the board in general thinks their chances are, and has no real impact on a characters chances. Sakurai is unpredictable and in the end no character is a sure thing and almost everyone has a chance, some even bigger than you might think. There are still probably tons of people outside of smashboards voting for characters they like as well, such as Daisy.
The important thing to remember is that you can't vote against a character in the poll. So basically, haters have no power at all. All, Sakurai and whoever else is going to see, and probably care about, are all the positive things Daisy fans are saying about her, and how much we want her in the game. So just keep on voting and showing support for Daisy, because in the end that's all that matters!