We got the tongue in cheek point of the comment. However what is being discussed is the ordering. Defcon 1 is more serious than Defcon 5. ie it counts backwards from 5 to 1 as situations become more serious. So your comment should be Defcon 2.
Pedantics aside, I did enjoy those little comments you put alongside the threat level.
You can just write DEFCON 3 and this will communicate the same "moderate risk" message to everyone, no matter their understanding of how DEFCON levels work.
Pedantics aside, I did enjoy those little comments you put alongside the threat level.