I have noticed this trend for a long time also, and well before this article was first written. It seems to go in waves though I'll cautiously say that it seems to have gotten somewhat better in recent years. I remember a time in the mid-2010s when these kinds of stories would disappear almost instantaneously. Now some of these articles and topics get a good number of upvotes and occasionally even substantive dialogue.
That said, the comments sections on these articles do tend to devolve pretty quickly.
As an old hand in ICT it wasn't always like this. Something happened (in my opinion) between about 84 and 94 which systematically eroded and undermined women's experience in ICT.
I'd say it was gamer/pc culture but it's beyond that, although it's tied up in it. The conference cycles and tradeshows also played a role. Booth babes played a part, trivialising women's roles in public.
Several dozen highly significant design, analysis and operational roles in the internet vested in women back "then". People sometimes forget that. Women have always been a part of systems, networks, code. Always.
I'm not saying this was not an improvement, simply that it meshes with your timeline and sheds a different specturm of light on what you are pointing out. (to put it another way, there were traditionally many fewer women who wore pocket protectors and carried sliderules, but yes they were very much a part of the community)