User blog comment:SuperStrawHatSaiyan/Are You Gonna Fix It, Toei?/@comment-4156018-20130104172417/@comment-4156018-20130104183229

It's not like they add fillers because they want to. The episodes are going by faster than the manga and therefore they need filler episodes so that the manga will catch up to the one-year space.

Honestly, I'd rather have filler episodes than another arc of stupid reaction faces that cover up 50% of the episode (Like Episode 489).