1. Click on 'Advanced Search' towards the top right of your screen
2. Begin typing in your username into the 'User Name' field and click on your name when it appears
3. In the 'Additional Options' go to 'Sort results by: Date' and 'in Ascending Order'
4. Click 'Search Now'
Looks like it was feedback for MyCroft on 2nd December 2013.
EDIT: That looks to be flawed as it's only looking at threads also started by you...
EDIT 2: Found it:
1. Click on 'Advanced Search' towards the top right of your screen
2. Select the 'Search Single Content Type' tab
3. In 'Search type' select 'Posts'
4. Begin typing your username and then click it when it appears
5. In 'Sort Results by' select 'in Ascending Order'
6. Click 'Show results as 'Posts''
7. Click 'Search now'
Looks like it was this: https://forum.tz-uk.com/showthread.p...=1#post2780552