While I don't really have any problem with Fox's stance that you're under no obligation to be friends with your coworkers (and honestly, I have a lot of respect for that stance), he probably doesn't need to be engaging random online nobodies to explain himself. Unfollow if you must, but why stir up a bunch of unnecessary drama? Why give the Kings whiteboard material? What's the point? He was traded in accordance with his wishes. He got what he wanted.
I've generally viewed the Fox trade as an unfortunate situation where everyone was ultimately just protecting their own interests, but Fox is making it awfully difficult these days not to hope for his failure in San Antonio. It was already hard to believe that he and his agent had been operating in good faith with the Kings' front office prior to his trade, and it really doesn't sit well with me now that he seems intent on pouring salt into the wound of his departure. You want out? Okay, done. You can't muster up a sincere goodbye message to the city and its fans? Fine, you were always on the more prickly side. But the antagonism now that he's in a Spurs jersey seems so gratuitous.
I'm not among those Kings fans who took some kind of personal umbrage at Fox's desire to move on. But nor am I going to look back fondly on his time in Sacramento, and nor am I going to be rooting for him to achieve what he couldn't accomplish here.