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.
True Neutral - Trixie. The only reason she did agree to help out the heroes try and stop Chong from taking off was so that the other ponies wouldn't harm her. And then there is also the reason why she's joining up in the first place. Sure she was threatened by Applejack, but then Pinkie Pie bought up a reason that was good enough for Trixie to join up, and that simply to show up Twilight and nothing more than that, wanting to prove that she is better than Twilight.