Seriously, if I stumble into another story which begins with 'I've been reincarnated as the villainess/duchess/baroness/third wheel of the story ...', I'm going to go slam my head on a wall.
I mean, yeah, I get it, a lot of people apparently are into that, but it's never a good look to give the impression a website about CREATIVITY may actually be all about BANALITY. These stories aren't bad per se, some of them are actually really good, but it's the same thing over and over again.
Also, I personally think the amnesiac protagonist is lazy writing, at least when done so in such a manner. It is a lazy way to make you see the protagonist as a victim since they have basically done nothing wrong, yet are accused by many characters of doing many wrong things (before the amnesia/reincarnation).