I do not think that writing IRC bots is wrong (though I would consider them irritating), I do not think quotes from famous women is necessarily wrong (though one could suppose a non-curated list could potentially go awry).
I don't have a problem with polite discourse, but I don't think that's what this was. I assume that she was polite when she brought it up before, when she was ignored. Had she stopped there, or gone to a superior, or an HR department, then I believe she would have been in the right.
Again, I'm not saying that what she did was offensive. Just that it wasn't the high road. It isn't the right thing to do.
She isn't Rosa Parks refusing to sit in the back of the bus, she's just trying to turn their own antics against them. As a prank, I'd applaud it. As a means of peacably resolving an uncomfortable situation, I consider it a failure, at best.