I think that a good addition to the site would be a section on the home page that has the games recently played by that computer. The amount of time or games displayed doesn't matter so much it is just that I often have a hard time finding a game i played a while ago and that i want to play again.
Indeed this would be a excellent addition, for example I am trying to find a game I played on this website over five years ago. Apart from having to try and recover my old account, I looked up my old account and see I did not favorite any games. So now I have no way of finding this game that I really enjoyed and that I can easily recall what it looked liked (but can not recall the name of) as I had gotten a new computer five years ago.
I support the author for all the time to save a new favorite game is sometimes lazy, and it will be nice to go and immediately understand what you played and whether you want to go back to this game or not