This might get me downvoted due to the tribal dynamics on LW but I just wanted to share that I think my reason for missing your excellent point (upvoted) was perhaps some assumptions I made reading the following paragraph:

Bob is part of her crowd. Her friends like him; he respects women and treats Sally well and, like any healthy teenage boy, fairly horny. According to her belief system, that shouldn’t set off any alarm bells. She’s been warned about abusive relationships, but Bob is a nice guy.

I'm sorry but Bob is a very unsexy sounding guy.

This seems to hold true when dissected from a variety of perspectives, thought this is probably just the result of unfortunate signalling side effects of some words. Anyway I find it amusing some of the heuristics I've employed with such great confidence should happen to misfire on a LW article where I should have known better.