I have 2 issues with his tweet. First, assuming the tweet is meant as a put down of Williams' decision, what level of immaturity does this display that Francois would wish something negative on another player? Frankly, I am of the opinion that everyone should wish everyone else well in life, short of someone who is just a terrible person, which I doubt Williams' is at the age of 18. I am thinking bad like; serial killer, rapist, child molester, Stalin, Hitler, Pol Pot. You get the point.
Second, assuming again that Francois is putting down Williams' choice, Francois' twitter handle is jhumble. How moronic must he be to be so arrogant and call one's self "humble".
If my assumption is correct as to Francois' motivation, then he is an absolute moron. I still wish him the best as he has done nothing to hurt me, my loved ones, or society as a whole, but he is an idiot as he apparently does not know the definition of the word "humble"