I mostly hate Fluttershy episodes. Dragonshy, A Health of Information, It ain't easy being Breezies, Putting Your Hoof Down, Fluttershy Leans In...
Firstly, I don't like the patronising depiction of animals in MLP, and the way that Flutters babies them makes me want to puke. Wild animals are not helpless babies.
Secondly, Fluttershy is grating and annoying. When she is being all shy she's excruciating and I haven't the patience for her. And when she's being "assertive" she comes across as vicious and b*tchy. Being confident and being a bossy control freak are not the same thing. I'm not just talking about Iron Will (who seriously needs to die painfully, by the way.) She could be more assertive by being chill and relaxed. That's real confident behaviour. She can be charming at times, I'm not totally condemning her as a character, but in general she is just not for me.