In my opinion he's said way too much stuff about LeBron over the last 3 years to ever think he's joking. He's gotta strong dislike for him.
A lot of folks do. Turnup has never liked him, not even when he was in Miami. But he's never wished any actual harm on him. Unlike Hurricane with PG.
Heck, I don't like him either. If he truly does come to the Lakers after the season, my opinion on him will be much like Turnups. I still won't like him, but I'll enjoy all of the winning that will come from having him on the team. Kind of like how I feel about Kobe. Although, I did find myself liking Kobe more after he became the "wise old man" on the team and mellowed a little. lol