If I click my name in "Welcome First Last", none of the links that pop up take me to a page showing a list of my own posts, or a list of the threads I'm following. Even worse, there's no more emails being sent when someone replies to my threads (despite the fact I am "Following" them), so if I close the tab I have no way of getting back to my post unless I go dig through the category again to find it. The ADF search doesn't search on the user's name, so searching your own username in hopes it will reveal your posts will leave you very disappointed. Please fix all of these as soon as possible. ADF is very very unusable at the moment.
Where do you go to see your posts?
You can use the Content link near the top right, then select Authored or Participated.
Click on Activity at the top of the forums. This will show you the threads you're participating in.