When I pull up your user CP and look at the "edit signature" section, there is NO signature or picture. So the signature about the apples is on your phone, not on the Forum. What I mean to say is that the phone is putting it as your signature, not the Forum.
Its some sort of glitch...I posted earlier from the android app and a pic of some radiated torts was at the bottom of my post....its gone now but I just saw someones elses post with the same issue