Read Thread: Portland OR Dinos unfound!
Most definitely not. A few years back hartwolfzell started Plant a Beer Day to encourage folks to plant at or near a brewery. The event occurs in April and is currently hosted by me and Helms' Flying Adventure.
As for me, if I were near Portland, I'd definitely add those boxes to my list to find as I clearly love a good box and beer and also dinosaurs.
Definitely not due to drinking. Pub crawls have a long standing tradition in boxing in some parts of the country. Boxing overall has slowed down in the Portland area, so I think some people have gotten out of the habit of looking for new boxes. But, they are on my list as soon as the beginning of the school year crazies settle down some!
Amanda has a great point, as does Warrior Woman. I too have boxes out there that are over a year old with no finds.