Several times I have encountered situations where people realised game.OnClose was deprecated, but kept using it because they did not realise that there is a non-deprecated way to bind functions to run before shutdown (game::BindToClose).
To alleviate issues like this, I think there should be a link on this page:
http://wiki.roblox.com/index.php?title=API:Class/DataModel/OnClose
To this page:
http://wiki.roblox.com/index.php?title=API:Class/DataModel/BindToClose
So that people are redirected to the non-deprecated method when they look up OnClose.
I would also like to suggest doing similar linking for other/future deprecated members which have a non-deprecated workaround / alternative that functions similarly to the deprecated member.