Make a one page dungeon that uses only imagesI think the challenge is interesting, and it did give me an opportunity to come back from my recent slacking and get some new things posted to this blog. I think the format has both disadvantages and advantages. As for the former: 1) it's hard to do anything too complex for fear of being misunderstood/misinterpreted, 2) #1 seems to drive the content toward familiar clichés, and 3) it feels a little cookie cutter (but maybe that's because I didn't spend too long trying to push the format). As for the latter: 1) it really leaves a lot of things open to interpretation by the DM, and 2) it really does allow flexibility for strength and number of monsters, as well as type and amount of treasure.
and visual devices. No words. No abbreviations.
I think mine (at bottom of post) is particularly stripped down from Telecanter's intention, since I have absolutely no stats included. But honestly, if you've run enough zombies, rats, bats, and spiders, you can wing it (even if you don't remember exact ACs for example).
What I really miss not having in this format is the detail. Sure, a picture is worth a thousand words, but there are some times when I'd rather have the perfect three or four words, than the other 997 or 997. It was a fun exercise, and something I may re-attempt in the future, but I'm much more of a fan of the single-page format. But maybe that's because it's much easier to do something with only the most minimal of visual needs (like my Tomb of Ludor single-pager).