Perhaps you can't read my warning level. It was increased because my signature linked to a not-for-profit website on organ donation. I think this was the website, but it was erased by someone so I'm not sure:
http://www.organdonor.org/
Overall this is not a big deal. But I think it would have been a much better idea to notify people through PMs, either as a mass-PM to every member or create an Announcements board and post a topic there. I was not aware of this topic, and since someone had manually edited my signature through the Control Panel, I question their reasoning in also issuing me a warning. Perhaps they consider a Warning to be "just a warning" and not a penalty, but I think it was rude to do so.
BTW, I am a strong advocate of organ donation and patient's rights, partly due to my mother's death from cirrhosis and she was never able to receive a liver transplant.