I disagree. Used correctly, it's useful. Don't use it to rate players, and use it to help show what is happening on the ice. Same as pretty much every stat.
- MJL
No it shows nothing. A player is -3 what does that show besides someone was on the ice for 3 goals? It doesnt show that you had positive possession numbers, hit many posts or dominated the game. It doesnt show you that the other team had a lucky bounce, goalie let in a weak goal and then down 2-0 they scored an empty netter. Its a useless stat