On /r/twoxchromosomes, a profile of a somewhat accomplished (more like John Aaron, less like Alan Turing) woman was posted. In the comments were some six to ten people lamenting that she didn't have a Wikipedia page.
I thought perhaps it had been put up for RFDs or something the way they complained about how a man in the same position would have a page. Anyway, so I waited a day to see if they'd do anything and they didn't.
The woman in question did deserve a Wikipedia page so I made one, described her story, and added citations. Within the week, various bots had made it pretty. I was then able to go request a picture for her Wikipedia page. I just checked and the page looks pretty good. Lots of people have contributed.
Nothing I did was impossible for any of them to do. So why didn't they do it? Why instead did they write absolute reams of comments about the unfairness when they had the tools to fix it? Why are they so helpless?
On the Internet, no one knows you're a dog. You can be the change, quietly.