I'm not very concerned about the happiness of others. I like to fool myself into the belief that there is a greater good, even if I made it up myself. I treat Discordianism like an actual religion, and value ideas over individuals.
Totalitarianism just actively reinforces a single interpretation of reality and common good. Every mass taught idea is totalitarian until it is embedded within the culture, and reinforces itself.
As for the fact that Discordianism is attractive to authoritarian channelers, you've hit it right on the nose, it's a rather strange dichotomy which I've struggled with for a long time. I came to love Discordianism from a young age and can't get rid of it. Its texts gave the feeling of a shitposting secret society, and it hit it right on the nose for me. The complete balance between two opposites is what makes it a spectacular thing for me. It's written all over the principia, and it surprises me that people assumed that anti-individualists couldn't love such an amazing concept. Chaos consists of Order, too, and it deserves to be represented.