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.
YMMV: A Troll In Central Park
Alternate Character Interpretation: It is possible to see Stanley as not so benevolent troll, considering he dreams of a land where all trolls are essentially copies of him (even if supposed to be "good") and, in the end, he covers New York in vegetation. Whether he is simply delusional or actively malevolent is up to the viewer.
Not to mention his creepy, seemingly pedophilic reaction to Rosie.
Big Lipped Alligator Moment: The boat ride suddenly enters Stanley's dream land which he apparently created out of nowhere, we see all kinds of happy things that have no relevance to the story, and when the sequence is over, nobody mentions it again.
Ensemble Darkhorses: Gnorga and Llort manage to be the most entertaining characters in the film.
Memetic Mutation: The "I'm a baaaad troll" clip is posted in response to forum users that fail at trolling.
Money, Dear Boy: The only possible explanation for the presence of Jonathan Pryce and Hayley Mills as Gus and Rosie's parents with bad American accents.
No Yay: Stanley's reaction when Rosie, a toddler, kisses him. He seems waaay too happy about it.
Ugly Cute - Pretty much the film's entire design aesthetic.
Unfortunate Implications: Stanley's vision of a perfect world is full of trolls who think and act the same way he does. Also, see No Yay.
What an Idiot: Llort is essentially responsible for triggering the entire conflict of the movie due to his pointless complaining.
Stanley's whole outlook makes him come off as this, but considering how apparently being a delusional nut job seems to work out well for him in the end...