Wow, you're literally being downvoted for just making an observation. Pretty sad for this community.
They added a concerned face on the end, which implies there is something about which to be concerned. Objectively, that is an opinion, not just an observation. Subjectively, I believe it's nothing to be concerned about at all, considering the circumstances of the creation of the sheet and where it's been posted.
I could have told you that HN readership skews male. Throwing the "observation" out there feels like an invitation to argue.
Apparently meta-observations aren't taken well either :)