I'm posting this reply so I can test deletion...
EDIT: When I click "Edit Post," at the top of the edit page I see a checkbox that says "Delete this post in the following manner," followed by one choice: a radio button that says "Delete Message." I suspect that if you started a thread, you'd also have the choice to delete the thread, but perhaps only moderators can do that. Why don't you give it a try now that there's another message on the thread?
Last edited by brianogilvie; 09-29-12 at 10:25 AM.
Reason: Update on deletion after clicking the Edit Post button.