@fishonjazz and
@MT Steve
Please dudes, let it end. You both are now in a loop of unconstructive debate with each other leading to nothing good.
+/- and free throw stats are what they are and their usefulness depends a lot of context they are talked against. +/- stat's (for individual player) usefulness is highly correlated with the size of the sample set. One game is never enough, neither ten, but over longer periods of time it is clear that good players tend to have better +/- stat than worse players. There is absolutely no magic here. Inaccurate AF for high resolution evaluation, yes! Meaningless, no!
Amount of free throws in a game could be useful evaluation tool for reffing if we also use big samples that take account who was reffing, who were on the court, what was box score in that situation etc.
But you guys know that already. Probably better than I do.