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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. Most bots must be approved at WN:BOT; global bots are accepted in limited circumstances. (Check to see if this user is a global bot)
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Bot would relink images that I personally moved on commons. <- (most of the usage will be this)
Bot would remove images that I personally deleted on commons. <- (I don't expect to do this at all)
Images incompatible with commons are also generaly incompatible with Wikinews
I am an inclusionist so for me deleting something is the last resort.
I would upload them locally if fair-use applies, which isn't always a possibility.
Being a commons admin I can delete any file on commons and when I do I want to be able to update wikinews pages so that they do not 'suffer' from this.