::Of course it is the case. I can do whatever I want with it. The article did not say that I can't. Even if you block me after I delete everything then still I was able to do what I want with it. Haven't you studied Logic? And why the hell can't I erase these warnings when they have already expired? I was already blocked, and so your "this is already your second warning" with the stop sign on the topmost of this page has already expired. The verdict was already served, and another sysop deemed it fit to immediately unblock me. 

 ::Now, what is your problem? Where does it state in any WP policy that I can be blocked because I deleted your comments in my own Talk Page. Your recent warnings are illegitimate. There is no ongoing issue that necessitates me to retain your bullshit and cocky comments in my own Talk Page.