In first window of Hall of Fame the dates below player shows when player joined the team and when he left. I am not sure about joining date, but leaving date actually is different- in my case Vasilij Bencina left 18.07.2009, indicated is 14.07.2009.
If you click player, you will see again two dates one whe player was joining the team, another when he was added to the Hall. Logicaly it should be when he left the team.
Probably it is small thing, but it is easy to correct.