These are what we call the 'YMMV items.' Things that some people find in this work. We call them 'your mileage might vary' because not everyone sees these things in the same way. This starts discussions in the trope lists, a thing we don't want. Please use the discussion page if you'd like to discuss any of these items.
Pandering to the Base: Chapter 84. The only people who would get all the gags in that chapter are Superstarultra's friends on AIM, who came up with most of them, and are his most loyal reviewers. They are also very fond of the Anti-SOS Brigade.
Paranoia Fuel: The Author's Note at the end of Chapter 84. Look behind you...
Villain Decay: Ryoko and the Anti-SOS Brigade, aside from the end of the Emo-ri arc.
What an Idiot: Kyon in chapter 47, when he tries to decide which of the girls should be allowed to date him. ...By arranging them in order by their breast-sizes with photos he took of them when they weren't looking. They don't take it so well.