In the past no one cared about cis or trans because it didn't matter, but they found how it could be used for political leverage to divert attention away from more important things like the actual quality of work.
In the 2010s there was a sort of emancipation for trans people, and you could see them more and more often being openly involved with open source software. It is only natrual to want to turn open source communities to be explicitly accepting.
Not convinced trans (especially trans women) weren't already over-represented prior as open source allows low barriers to join and anonymity on top of predominantly male (and trans women) + young.
You may not be convinced but I am simply stating my experience. I would be open to proof of the opposite. This is also seen in other open source adjacent communities around the world (eg: hacker conventions)
> In the 2010s there was a sort of emancipation for trans people, and you could see them more and more often being openly involved with open source software
It was "your" claim about others and in general ("you could see"), i.e., not mine or your anecdotal awareness.
> I would be open to proof of the opposite.
It's on you to prove LGBT, especially T, weren't already over-represented (versus typical population) in open source prior to the 2010s.
I think this sub-thread (specific: trans) on Python Foundation's DEI (general) got supercharged with a claim that Hillary would've championed trans rights. To me, she was always very transactional and would've adopted "rainbow capitalism" approaches that optimize branding premiums with little substance.
Meanwhile, trans rights have always been a favorite of marxists as an in-direct tool to attack capitalism (nuclear family, property rights, etc.)
Worse than that, they've been a favorite for men to attack women. It's the most sexist policy for a long time, harking back to an era of misogyny that should have long since been left behind.