As outrageous as this letter was, I wasn't suprised at comments like these seeing as I live in Ohio and am used to dealing with disgrunted Cavaliers fans, or just ****s who support the Cavs simply because LeBron James' market-ability has been abused to the point where it sometimes marginalizes the rest of the league.
Those sorts of people may not even have the league's best interests at hand, and instead focus their sports writing on targeting individual stars, further elevating the problems that occur when one athlete/individual/superstar is over-hyped and expected to bail out a city full of losers in a sport that they have never been successful at.
I understand why Cavaliers fans feel betrayed; however, instead of taking their anger out on LeBron they should first realize that he isn't the only thing going on in the league (even right now w/ the NBA summer-league) and that he has every right as a professional athlete to try and maximize his chances of winning and being successful in his sport, even if that means leaving his current team.
Maybe after their anger boils over, in a few seasons from now they'll look back to their 'LeBron James days' and remember what they used to have -- a two-time league MVP who was one of the best/last of a rare bread of phenom high-school athletes who went straight to the pros, and that they were equally lucky to even have the chance to draft LeBron with the first pick seeing as the Cavaliers have always been a mediocre basketball franchise.
For them to even reach the NBA Finals, which they lost in 4 games, a young LeBron had to carry that team on his back, scoring all of their points through an entire overtime period against the Pistons in the 2007 playoffs. The Clevland Cavaliers have existed as an NBA franchise for over 40 years and still haven't ever won a single game in the NBA Finals.