Yes, that sort of feedback drives me batshit. I got a review like that on an Anakin fic I did a while back - all the reviewer said was that he hadn't read my story, because he thought Anakin was a pure asshat, then went on to rant about why Anakin was an asshat and I should have written him that way. Then there was a reader that said a HP ship-centric fic I wrote was squicky because they pictured the movie actors doing what I wrote - which didn't even go beyond cutesy banter. And I just think... I have control over that, how? I've don't have control over what preconceptions you have. I didn't make you hate Anakin or picture Dan and Emma, and I certainly didn't mind-trick you into clicking on my story.

I mean... what on earth are you supposed to do with feedback like that? Well, mock it, I suppose. ;) Which makes me wonder... is there an LJ comm out there where people post stupid feedback they've received? Or is that fanficrants territory?