Many don't put much stock into +/- but I think it is useful when comparing against teammates. Shinkaruk tied for 4th worst on his team while Poirier was tied for 7th best (which includes a few guys that barely played).
Shinkaruk
http://www.hockeydb.com/ihdb/stats/l...009982013.html
Emile Poirier
http://www.hockeydb.com/ihdb/stats/l...032452013.html