sanctus
Acting like your goal has already been achieved doesn't necessarily get you any closer to your goal. If my closet has a bunch of stuff I don't use, it's not going to get any cleaner if I just pretend it's already clean.
Unless their name is in their username. Or they have a profile picture of themselves. Or they have their real name on their commits. Or their username or picture is something stereotypically masculine/feminine.
I searched for 'things' on Github and looked at the most recent committer of the first 20 responses (easiest way I could think of to get a random sample of users). For 16 of them, I could easily see that they were male. 2 of them had their names, but I wasn't sure if the names were feminine or masculine. 2 had no hints whatsoever.