I don't understand why people make comments like this. Not that I'm offended or anything. I don't care much for this theming myself. But...that's what personal preference is? There's nothing to get. It's like saying "I don't get why people like dark chocolate. I don't like dark chocolate. Just eat cocoa powder if you want to avoid milk and sugar".
It's like the most information-sparse comment someone could make. I can't do anything with it. "Some rando on the Internet doesn't like this". Cool.