Maybe they should just remove the ability to socket claws
In all seriousness, you can loot cedar boards. It would be faster than trying to level up a biped craft class on your dragon.
Try blighted mobs; they LOVE dropping resources, both processed and unprocessed. I recommend the observatory for that tier of loot.
I don't recall ever being able to loot refined materials, except blighted ones, and never recall seeing /boards/. Also, I don't think Dragons can use the blighted board and bark processing forms to convert blighted to unblighted, either. Been a while, though.