Board Thread:Episode Discussions/@comment-25319479-20150514144219/@comment-1251315-20150518155952

Ten Tailed Fox wrote: I didn't watch this filler at all. No interest whatsoever and I don't think I really lost out in the end. Perhaps the anime-only crowd likes these filler arcs, but filler is almost always nonsense. Not always, filler can be useful in a lot of cases. Several of the fillers actually expanded on canonical content (eg Twelve Guardian Ninja (Arc), Hashirama answering Sasuke's question, Paradise Life on a Boat, and a few others), so calling them all "nonsense" is not really accurate.

When you think about it, filler arcs are nothing more than fan fiction written up by the anime team to prolong the show and earn them more money. That's a rather poor example, fan fiction is something written by a fan, not a corporation. Plus, how can it be fan fiction if Kishimoto has sometimes endorsed filler arcs? (Could be wrong here, but I'm pretty sure he endorsed that filler arc involving a young Kakashi and Yamato).