Um Krip Side banned for posting a picture?

First of all why the hell was i banned for posting a macroing skill cape picture?

I broke no rules posting it. The only rules that can come close to it is this one...

the thing is i never said they were my pictures, this is a corrupt ban as i did not break ANY rules. I mean i even said in the thread later on that it wasn't mine. Why should i be banned for this?