ShortCacher: I strongly encourage cachers to thoroughly read previous logs to get a feel for whether or not their time is worth the adventure of a possible dnf. I also encourage carrying a maintenance bag. I usually carry extra containers, pens, waterproof logs, baggies, and, of course, swag. Therefore, when I come across a potential dnf, I can PAF or contact the CO to hopefully figure out if it's missing, moved, or just haven't been able to find it. If it's damaged or missing, I then seek permission to maintain the cache for them. This is a wonderful way to keep caches thriving.
Sometimes the smiley isn't the final destination, but the adventure leading to it.
With that said, I have been unable to cache or maintain due to health reasons. I apologize for any missing or poorly maintained caches.