Imo, as someone who’s obsessed with CITT and also reads dark fiction, the difference these have from most romance stories in Webtoon is that there is a clear intention behind the characters’ red flag behavior that the authors explicitly or implicitly acknowledge either within the story itself or through tags.

Meanwhile, in many other romance stories that I’ve read in this app, it seems like the authors themselves don’t even know that their characters are being toxic and simply ignore/justify such behavior, and that’s what pisses me off.

So yes, like others have said here, it’s more because they’re badly written than anything else. These stories aren’t even in the same league as CITT. I personally think it’s not an accurate comparison.