You're obviously just doing this to get a rise out of people. If you could stick to giving well-reasoned arguments as to why you think he's a poor player, and tone all of this down a little bit, it would be much easier to respect your opinion. When it's only "he's not smart", "he sucks", "he's shit", and when you post that constantly, you give off the impression that your agenda is simply to provoke and annoy.
Personally, I find it unbelievable that you're actually investing so much time in slating such a beloved club-player as Claudio Marchisio. It's amazing.