User blog comment:Wirdang/why not caribou on the crew ????/@comment-3242083-20101208204042

Isn't it obvious? Caribou is in the same position the straw hats were in - 2 years ago -. He is a supernova of the next generation.

His only use is to serve as a "comparison" to shows how strong the strawhats became. He is the typical Usopp character, only there to make a difference between a "normal human" and a real "strawhat", just on a new level ("supernova pirate" - "ready for the new world" pirate)

Only Oda knows what will happen, but i really really doubt he will join the crew.