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.
Because Avatar haters criticize it as rip-off of Dances With Wolves—which it's not—people complain about Dunbar being a Mighty Whitey, when he clearly isn't (he isn't better than the Lakotas at anything they do regularly, he puts them in danger rather than saving them, and he is rescued by them at the end).
It also gets a surprising amount of hate simply because it beat out Good Fellas at the Oscars.
Ho Yay: Wind In His Hair calls Dunbar his kola, which in Lakota custom includes sleeping in the same blanket when part of a hunting party and in some cases even sharing wives. This also qualifies as Foe Yay since they didn't like each other at first.
One-Scene Wonder: Major Fambrough, the crazy (possibly from either syphilis or lead poisoning) military officer that gives Dunbar his orders, and thinks that it's the time of King Arthur.