Unauthorized skin use

Okay, yesterday I was informed via pm, by my good pal Uvah, someone has posted my Acrylistix windowblind at "uudesktop.

I did not submit this or approve. I am really kind of flattered in a strange way, someone stole something I made, awesome, but, as I said, I did not upload to this site.

I tried to contact someone and got dead links everywhere. Seems a bit shady.

Also saw other skins from our community posted, do not know if they were posted by the artist or not.

Mine is listed as posted by Admin.

Any suggestions? Should I care? Should I complain? How to contact someone. Curious to all of your views. Thanks DT1.

I will add also, the skin is listed as mine, made by me, looks like my DA submission actually.