The semi-realistic style, especially in concerns to fan art, is actually somewhat common in Canada I've noticed. So even though her art is great (and a higher degree of semi-realistic), is nothing that I haven't seen before in mass at conventions around here. Again I don't think she shouldn't make money off of her work because it's still work (and honestly I'm happy to see artists pulling in money for their products) it's just somewhat disappointing in general (not with her) that fanart is the selling point (though if you check out her patreon she IS doing a heck of a lot for some of those that pledge to her)
On a side note I too am also more of a fan of cartoonish styles than semi or hyper realistic ones, cartoons and comics are always gonna be my weakness when it comes to being envious or a huge fan of art.
As for how she acts online, she's not really obligated to baby everyone that tries follows her art. Using myself as experience, even though I'm not a huge artist like her and many others I still have a significant sized enough fan base that even though I love to death and appreciate, will often tire or stress me out. As much as I would like to interact with everyone I can't, especially when I get weird requests or comments I don't know how to respond to (example: today someone told me to tell their boyfriend that his art sucked, because when she told him he wouldn't listen, but she thought he would listen if an artist he liked told him.) I can't pay attention to all of them, and unfortunately in my case the ones that pay DO get priority, and not because I feel they are more important, but because often (but not all the time) the people paying me feel they are more important than those that don't pay me, and get very antsy and even harass the me if they feel that their money is not going to good use. And because money is involved yes, it's important that I do what I can to make paying customers happy, cause at that point a negative review from a paying customer is severely going to hurt my business, sometimes they take so much time to deal with that there is no time left do deal with the rest of the fans AND do everything necessary to make and promote my work. I can't even imagine the amount of fans both paying and not that she has to deal with everyday.
The Robin Williams sexy gender bent genie thing that was mentioned somewhere in this thread though... I actually missed that one and have not seen it, and I'm actually kind of glad that I did miss that one because even just hearing about it I would have to agree that yeah, that was in very bad taste.