Java applets and Flash aren't hated because they're powerful. It's because they're perceived as slow. Java applets used to make my entire browser freeze up for

Java applets and Flash aren't hated because they're powerful. It's because they're perceived as slow. Java applets used to make my entire browser freeze up for a few seconds when they loaded. Before installing AdBlock, I would regularly see Flash ads chugging along at 100% on one of my CPU cores.