You can now see the forum history for yourself or any other user. To do so, click on the user's profile link (or your own My Account link), and then click on "Forum posts" in the "Account Stats" sidebar. As a quick example, to see the forum history for our all-time top forum poster, dnoeth, you can visit: http://developer.teradata.com/user/dnoeth/forum-activity
Don't be intimidated by dnoeth... if you keep working hard, one day you can have a history like this too.
This is always a fascinating feature for me, while using any forum because this gives me an ease of tracking my posts/replies. I was looking for the same kind of thing in Teradata forum but couldn't find any. Thanks for pointing neilotoole.