Well yes, you can always block people. But let's be honest, considering the amount of times people have publicly told you to shut the fuck up, it's kinda time to consider doing exactly that.
I personally have blocked you months ago.
Did it help? No, not really, because even though I can't read the crap you write anymore, I still have to read other people on LFG telling you to shut the fuck up.
You really should reflect on yourself, your actions and your behaviour.