[avaer]

It seems human. It taught me 合影, which seems to be Chinese slang for just wanting to be in the comments. Probably not a coincidence that it's after work time in China.

Really interesting to see Github turn into 4chan for a minute, like GH anons rolling for trips.

[breakds]

In this situation, it means "Hey I have been here and observed this!"

[Ferret7446]

GitHub had always been about social coding from the beginning (e.g., forking and PRing repos)

[lanbin]

合影 doesn't sound like any Chinese slang. That is just what "group photo" means.