Thread:Project:Support desk/Special page slows down, this gets spammed into the web server log/reply

I've accessed several special pages of your wiki, inspecting every request made by my browser (mozilla firefox) and there wasn't any request pointing to the api.

The user agent  seems to be an attempt from another wiki (or your own wiki if you configured it wrong) to get that image from your wiki, not from commons, like if that wiki is configured to fetch images from your wiki. If 23.239.27.244 corresponds to your own wiki, then probably you configured it wrong, if you set the foreign repo URL to be your own wiki.