I'm not sure Raonic will ever be a slam winner, but what I am certain about is that he isn't a "joke" or a "doofus". The guy is 15th in the world and was in the final of a 500 event that went 3 sets. Maybe we're all spoiled by the likes of Nadal and Federer and Djokovic but that is quite an accomplishment.
I don't get why this needs to get personal and childish. "Mugonic", "Clownic", really? Are we back in the second grade here?
That said, kudos to Kei Nishikori. Great win in front of the home crowd. I only caught the first set but he looked good. He has a bright future as well.