The poster is vague about who exactly who they’re accusing of what. I can’t read their mind, so I can’t tell you if all the people they are thinking of are men

The poster is vague about who exactly who they’re accusing of what. I can’t read their mind, so I can’t tell you if all the people they are thinking of are men or not. But I can tell you who they refer to in their tweet: the Go maintainers. If at any point they wish to make a more specific accusation, then the full resources of the English language are available to them.