I dunno what you can get from this except that making an art critique probably reminds the artist about their boobs. Or lack thereof. You can expect a roundhouse kick from Blanc or something idk
actually i find in this a bit of "Truth" in diferent ways (both the pic and the artist comment) from an artist perspective
from the pic: some people get really anger/depress when get a little of critique (don't be confuse with some fanrage comments or just plain jerks ones , or the harsh ones from Pros who are either jealous, brutally honests or just always jerks in everything) , to the point of leaving this or just complain in dramatic ways. Even if is just a little or an advice for the next pics, something who should be helpful instead.
for other part, from the artist comment: i find it accurate because some people doesn't understand the meaning of "fetish art" or just its the artist style. I been witness of some great names been mean or just hypocrite to another amateur artists in any kind of topics (fetish , fanarts , desing , script writting , etc). or just the same people who can't get over with your own style , even if the character has a little of notorius bossom (even if that one is a D-cup bra size) and/or the pic is SFW/NSFW ,they just start to complain about disproportions without even know about it. In a personal level , this is something who happen me in lot of occations through my time in DevArt, and something who end up shapping or changing even said person's personality and behaviour as well.
I don't think this is supposed to be that deep. Just a joke on how she said her colouring looked FLAT, which reminded her of how FLAT she [herself] is.
But yeah. I don't really have a problem with critiques and in fact I start to feel slightly annoyed [although I don't say anything] whenever people praise my stuff.
I haven't been to deviantart in a long long while, but yes, people tend to be pretty intolerant towards that, everywhere. I myself have a bit of what I consider "too big breasted" which I don't find beautiful, but I don't find myself in the right to go saying things about it just because I don't like it.