+/- is a flimsy stat. All stats are kinda flimsy in team games, I much prefer baseball stats where most of the data is driven by clear 1 v1 matchups. The highest + game I've ever seen in the NBA was done by none other than Shelvin Mack, who i think was +50 or very close....
Luc Mbah Moute broke the record and posted a +57 ina game for the Rockets last year.
but when it's something like -28 in 30 minutes, and the rest of the team is more in the 0 to negative 15 range, it's kinda of a when there's smoke there's fire situation.
The real reason I brought it up though is people are posting like the Kings got slaughtered with Willie in the game, meanwhile they got outscored by 2.