I can guarantee everyone the life of my unborn child that he will NOT retire next year.
This is the equivalent of a poster on message boards who's popular, active, but not necessarily the most
liked person, who at one point randomly decides they need to make a post announcing their intentions to "retire from the forums."
All of us are internet nerds right? How many times have we seen this on message boards? Those people NEVER stick to their word. So what Kobe's doing is the equivalent of a poster who got so butthurt either over a single event, or an accumulation of events - the wear and tear of longterm butthurtedness, that they "lash out," essentially saying, "I'm sick of you haters. I'll show you. I'll fake announce my retirement, see how much you miss me then."
With that said, I sure as hope he doesn't retire. He's the one of the few longterm legends that's still playing from the 90s

and his departure merely serves as a reminder of my own mortality.