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.
A good hunk of the fandom considers Klutzy, Herbert's faithful sidekick, to be a girl, even though canon calls him a boy. Parodied here
Though YMMV if the term fits, the Club Penguin Army community are players of CP who... Battle. Mainly for entertainment, though, these are taken as Serious Business by the troops in them. If you ever see somebody sporting themselves as a member of the Army of Club Penguin, Nachos, Dark Warriors, SWAT, Light Troops, etc., that's what they're talking about.
Jerkass Woobie: Even though Herbert is rude and, in Operation: Blackout, cruel, you can't help but feel a little sorry for him after everything he's been through.
My Real Daddy: Many players heavily idolize Lane Merrifield (Billybob), one of the founders of the game, and to a lesser extent, Chris Heatherly (Spike Hike), who took over as manager.
After Disney bought the company from New Horizon, accusations of this came flying everywhere.
The PSA being changed into the EPF.
The Dojo became a place for Card Jitsu.
Restricting "free" games and the sheer ammount of censorship.
Removal of the heart and skull emoticon was such a big deal, that they brought back the Heart Emote. Though the skull emote didn't return, it technically stayed beyond updates for areas it showed up as a non-emote, such as the ignore list.
Hugely the reaction to punctuation and numbers being banned.