To be fair though, I'm getting a feeling that the Sabres community has turned a little Boston-ish on Kassian here. That fanbase and even officials in the organization (more than most, it seems) have a tendency to tear down some outgoing players, managers, etc. Look no further than Terry Francona and Johnny Damon.
I know Kassian's NHL stint(s) were somewhat underwhelming, but I've been somewhat shocked to see how quickly the Buffalo fanbase has turned on Kassian. Maybe it's because of the high expectations on Vancouver's end, but you'd think he was absolute trash the way some people are depicting him.