I can really get behind an attitude and statements like this. There is so much that is so right about this.
I don't believe I've read any of Elizabeth Bear's work before, but I may just look some up next time I'm in the store.
ADDITIONAL: Seems Rational Mad Man has also endorsed the same post, and has received, well, what he usually gets lately, scorn and name-calling. Since my reasons for endorsing Ms. Bear's post are somewhat different than his, I'll elaborate on what I like about it, lest anyone automatically equate my statement with his and dismiss it outright, because I know some folks out there would, given the chance.
RMM sees her post as an extension of the "go make your own" argument/bingo-card-spasm-trigger, but I see it differently, because she really doesn't seem to be encouraging other creators to forge ahead with her statement (although I don't see any reason why she wouldn't be in favor of more female creators).
What she is saying, and what I like, is that she's forging her own path regardless (and in spite) of anything 'The Patriarchy' does or says in opposition. She doesn't need them to make her career work.
This is feminism I can get behind - the kind that says, "okay, here's what I think is wrong, but if you don't want to fix it, fine, screw you, I'm gonna have my own party and it's gonna rock."
By contrast, one of the failings I see in feminism as it intersects with mainstream comics fandom is that it is (quite probably inherently) dependent on 'The Patriarchy'. Long-standing feminist icon or not, who owns Wonder Woman? Not Gail Simone, especially not The Fandom, but corporate structures and shareholders, i.e., The Establishment, i.e., The Patriarchy. If this Patriarchy dominates DC and Marvel, then any appeal for change from feminists must be cajoled, begged or wheedled out of the Bad Mans. (Coerced, perhaps, but that assumes there's actually sufficient leverage with which to coerce.)
If you can't divorce yourself from the idea that you must have Wonder Woman, no imitations, no substitutes, no fanfic/fanart, it must be canon and she must perform to your expectations, then you leave yourself at the mercy of The Patriarchy, and their decision to put whatever creative team they choose in charge of her story, whether that's Good (Gail Simone and competent artists) or Bad (I dunno, say, Judd Winick and whoever people hate these days that draws WW with a wedgie and broken spine). And am I the only one that sees that situation as kinda messed up?
Which is why I find a statement like Ms. Bear's so refreshing: it demands nothing from the Patriarchy except that it step the hell aside if it isn't going to cooperate.
I think that's just gotta be healthier in the long run.