It is not a sock puppet, but rather an automated or semi-automated account for making repetitive edits that would be extremely tedious to do manually. Administrators: if this bot is malfunctioning or causing harm, please block it.
I use it for my own tasks (mostly to rename categories and other similar tasks), but if other users ask me to use it for them I will try to help. I'm administrator here, in Commons, and mostly work with Russia-related stuff, so usually I'm asked by Russian-speaking users.
3-4 edits per minute
I run it sometimes, when I need to perform a repetitive task