I can only assume you're referring to Mitchell Baker? Mitchell Baker has gotten a /lot/ of negative comments on HN, and some for good reason, but the constant ask of "how she won the position" and the like just shows the ignorance of the commenters...
Mitchell Baker co-founded Mozilla, and was the legal mind that structured both the split from Netscape that salvaged the code and wrote the majority of the Mozilla Public License and the legal/philosophical stance of the organization. She's an attorney with a specific background in intellectual property law, and without her contributions the entire world would be poorer for it. Mozilla, long before Firefox, was instrumental in the early parts of the open-source movement helping to define what it even meant to being open-source and creating a more rigorous and legally tested framework.
I am not a huge fan of Mitchell, so I understand and agree with much of the criticism, but it stinks of sexism or some other ulterior motive when people "wonderingly" suppose "how she won the position". Is anyone curious how Mark Zuckerberg became CEO of Meta, even though he's mostly blown through billions of dollars on boondoggles and acted in unethical ways? No, not at all, because he's the (co-)founder. So why is a different standard applied for Mitchell? Is it only because she's a woman, or is there some other reason?
I can question the qualifications of a person as it relates to a specific position (e.g. CEO), but that doesn't mean I don't respect their past contributions.
I find the accusations of sexism towards anyone who dares question her as excessive as some of the comments that were made towards her.