>Correct. BDT = Bangladeshi currency
>Defcon = hawaii
It could well be a request for anons to distribute side-by-side memes on these two topics. Q used these 2 events as sort of a tutorial to show us how he wanted these "Proofs that Q Knew In Advance" done, and they occurred within a short time of one another.
Q also mentioned a concern that proofs were being lost. Anons then stepped up our efforts to make more of this kind of proofs, and to archive them more systematically.
Things can also have multiple meanings.