Rainbow Dash's "NO POWERS EVAR" rants does come off as annoying both ICly and OOCly. The first time I could understand due to Hayate seemingly offering free powers to ponies but the last one made me side-eye a little. I get Rainbow Dash can be stubborn and may take a little to learn a lesson but it felt like she didn't learn a thing from that huge IC backlash when she made that post talking down on ponies with powers (especially those gained from the dungeon) and in a way coming off as, well, a bitch. I don't know if that was your intention but that's what it felt like to me at least.