From a historical perspective, such a question in even its simplest form is entirely valid given the nature of gender roles in societies. Are/were conspiring women's groups more or less feared than men's? I don't know myself, and my comment was sincere in that regard.
The concept of a women's conspiracy was familiar. Lysistrata involves all the women of Athens conspiring to end the Peloponnesian war by calling a general sex strike.
All this is covered by the site guidelines: https://news.ycombinator.com/newsguidelines.html. We didn't come up with these rules in a bubble bath! They've all been hammered out by the brutal processes of the internet forum.
> Women getting together is fine. Not once have groups of women ever been known to rebel against the government.
I agree with the sarcasm. Women are generally less problematic than men but they rebel when it matters. Another example, Rosa Parks.
Would Trajan have known this? Of course.
Compare your descriptions of suffragettes' terrorist activities with the research on how effective terrorist campaigns are at even getting their favored policies implemented. (And then, of course, ask yourself whether Trajan could have been aware of a 20th-century women's movement.)