You're not wrong but that idea requires some investment and if there's not enough allure to draw people in to invest in such a narrative in the first place, the amount of content just stays at 0 even if the character is good.
Too much modesty and clean-ness just makes most people skip over it entirely unless you catch the eye of someone who's especially into that sort of thing but that's pretty much a luck of the draw type thing.
Alternatively another solution could be her having a partner/sibling/rival of sorts or something, someone to pair with that could lead to potentially interesting situations with her without requiring as much investment as a result (well, minus the initial character creation troubles of course... which is what we're doing here, shit.)
Probably someone more promiscuous/playful and maybe teasing her all the time to be less modest, but that's just a random thought.
kinda hard to imagine a 100% gay image as a straight one anon, but I suppose I might see what you're saying if you're referring to the personality displayed in the comic.