I am reading Mockingjay and I have just noticed how much of an impact Cinna has had on the world. For instance, he has designed Katniss's slogan, he has made her Mockingjay and also her first rebel attempt (The burning dress). He has not only been Katniss's clothes expert, he has been her revolution designer. I have made a generalization that most of the rebels have had some bad experience with the Capitol. The facts I have is that 1: Katniss has had the whole Peeta affair and the berry affair, 2: Haymitch with the forcefield, Katniss, and Peeta,  Beete: with the Games and him going back in. I think it safe to say that a lot of rebels, have had bad Capitol memories.