The fact that it varies so much between folks and how different everyone's level of sensitivity does make it hard to warn for it in a way that works for all readers. I should have my definition on my fic master list just so that new readers know how I'm classing them.

I'm never quite sure what to expect when I see fics with the 'consent issues' label only because to me it sounds very mild - like one of the boys pushing their drunk brother a little further than he might go sober sort of thing - yet I did once see it used for a clear cut rape. But certainly it’s a good catch all term that could be applied to anything in or bordering the non-con category of fics.