I have looked at the page so often since then, that I forgot that it isn't actually part of BGG, and when on a friend's computer I was surprised to not see it. So I uploaded it. If anyone logs their games played and likes to see how many different games they have played(or I suppose, you can look at other users' profiles), give it a look.
I'd love to see something like this on BGG itself, along with a small column showing the rating that the player gives the game. That would also be useful for games played in the last 30 days, answering the question "played any good games lately?"