Agreed. South Park was at its best at the beginning of its run when it was a surreal comedy deriving most of its humor from profanity and discussions of mature and taboo topics to and between children characters who didn't understand that stuff at all. Sure there was some soapboxing, but it didn't get in the way of the rest of the show. But that changed over time. More and more episodes became about Current Thing of the Week and it got less funny as a result, feeling more like Matt and Trey's weekly rant which would age like milk within a couple weeks after airing once the Current Thing stopped being topical.