It's carried out of choice, and I saw no restrictions posted on the site which would disallow it.
Do my free choices upset you?
You have the freedom to either use a graphic, or not to use a graphic, you chose not to...do I now have the right to attack you as a result of your choice?
Does my knack for speaking my mind on the subject of what an elected member of Congress says bother you?
Do you feel exercising freedoms is a sign of arrogance?
Beauseant!