[Snip]
My point being, "pseudo-incest" can be about real issues, not just pearl-clutching. Though of course it can also be a way of getting incest thrills without it being 'real'.
For sure, but then you can also have the ShoukoTenri sort of situation where even 'real' incest is functionally indistinguishable from classmates whose parents happen to be friends. We can draw rough trends among either tag, but they're woefully imprecise, which is not something I'd expect from a content warning tag based on anything real. Hence why I'm stuck with eyebrow locked in raised position every time someone comes into a thread with "I don't usually like incest, but". (Well, that and my general inability to understand people who don't like watching people play with fire.)