Why I got silenced?

_The guy said he sucked at CS'ing. _

Guy: "I suck so bad at CS'ing... f___."

And me as good jungler that I am, came to mid lane to cs.

Guy: "Wtf are you doing?" Me: "What? You said you suck at CS'ing, I'm just trying to help."

Account Silenced. I was just trying to help.