Are warnings fair?

That's more than fair. A lot of times you don't get a warning.

its a warning thats so the line doesnt get crossed again so with me i vowed that if anyone puts a hand on my girl i will kill or die to protect her...i see a post where hung says to my girlfriend naked twister with chocolate thats FN foul because right before that he says DONT TELL DRDEATH...so he knew he was crossing a line ..fun is fun but that is some foul sh*t and now hes blocking every account of mine that he sees... well they are obvious they are ALL DRDEATH im not trying to trick or fool or tryingbto swoop on someones woman he doesnt think i know who he really is if i wanted to i could report him outta existance but i aint a punk i told him i had a problem with it he blocks me...whoa scary accounts are free sure they limit by phone but who cant get another number he could try being a man i guess his P U S S Y must hurt

Yes... The person who ignores warnings or boundaries out of complete disrespect deserves what's coming!!! 

Yes, very fair.

If you did something wrong, you could have been punished immediately rather than having any warning.

Off topic question with nothing to do with religion or spirituality.  I could warn you that this violates the community guidelines and tell you that once you submit your question you can move it to a more appropriate section or I and others could report your question without any warning.  Which do you think would be more fair and which do you think you would learn from?