Okay, here's what annoys me a lot. It's when an author writes a whole ass chapter with the oc's full ass personality, psychological review, and traits and past but then we start reading the story and NONE OF IT IS EXPLAINED and we're meant to count on that personality analysis chapter they published.

If you say your OC is heroic but literally don't put them not even in ONE situation where they're heroic, then whats the point?

Also STOP CALLING YOUR OC A BADASS and not writing actual scenes of them doing badass stuff??

It's SOOO ANNOYING when you keep explaining your character in paragraphs and paragraphs and have a full analysis on them when you don't show us instead of tell us.

Your OC has anger issues? Do they really if you're not showing it?
They're badass? But you haven't written any scene that proves that they are?

You claim they're powerful etc but we've only seen them punch someone and literally do nothing else but be cocky about how powerful they are???

You say they have a strong relationship / friendship with another character? But you don't show it??????? Then do they really????

in conclusion, show, don't tell.