I doubt any of us know her personally (I don't), but it could be that she's just a very awkward person, sexually especially and it's showing as a result of her inability to refer to her vagina as something other than Ms. Kitty. She likes showing off her body but it's entirely possible that she's not a sexual person at all.
Don't get me wrong - I'm mostly "simpathetic" to your take and others' about being ripped off. All I'm trying to do is note that leaving her legitimately negative feedback in an effort to signal that you're not getting your money's worth may be an exercise in futility given how vocal she's been about "boundaries" in the past and she's got the ability to close up shop because she doesn't want to go full porn star in certain ways.
We've had a lot of discourse over in the Amouranth discussion thread about the gaslighting that she does over being considered a sex worker ("I'm not a sex worker, I just cosplay as one") that I think Meg's deluding herself similarly. Meg probably doesn't want to publicly dignify that most of her fanbase via Onlyfans uses her content as jerk-off material and part of mentioning boundaries and restricting the type of content she makes is designed to support her argument as bullshit as it might be.
I'd be interested in seeing that for sure, but she would need to lose more weight and be in better physical shape to ensure maximum financial benefits for making that sort of content. She'd be pigeonholed as a BBW or THICC-type if she started doing that kind of content tomorrow and I don't know how much appeal that holds over other more in-shape "creators" getting themselves off in PPVs.