All right, I'll put it like this. I came into reading Homestuck because I was wandering up into the upper forums, and there was this huge MSPA thread, and I also found out that all of Toony's avatars were from MSPA, so I went "Well, whatever, I'll take a look." The place that I ended up reading to was the introduction of Cantown, and then I went back and read all of PS and it was all kind of... it was so lighthearted, so flexible, that I couldn't help enjoying myself.
But for Homestuck, I was never that into any of the kids in particular (I thought Dad was really great, though). The maturity that they're gaining is removing what was so wonderful about their characters--the interplay between holding themselves as adults and having the inabilities and limitations of children. I'm not interested in Rose as an older teenager with an enormous vocabulary. It was hilarious to see her gaming everyone else and psychoanalyzing them as a younger kid, though. Similar goes for Dave, who took himself so seriously and was constantly assaulted by puppet butts. And, the new set of kids is kind of... I just don't find them all that attractive as characters.
I don't mind whatever's happened with the trolls, since they'll be cool, active characters pretty much no matter what you do. But the dynamic between the kids feels like it's been somehow "flattened." The relationship with their guardians is completely ignored nowadays, and somehow, I feel that that was a large part of the dynamic elements of their personalities. Nowadays, there's not that much left of places where the audience knows things the kids don't know, or the kids know things the audience doesn't know. I feel like there's been a significant down-scaling of tension.