User blog comment:12th Supernova/Chapter 781: Doctor of Death/@comment-24287735-20150327142401/@comment-24769684-20150330111748

Not only are their personalities incredibly annoying, they were introduced at possibly the worst time in the New World. Literally not even 10-20 chapters after Kin'emon was introduced were we sent on an expedition that involved taking down both a Shichibukai and a Yonko, while putting dropping them off sometime in between. One of the main purposes of Dressrosa was for Kin'emon to rescue Kanjuro, but he did it in one chapter and has spent the rest of the arc standing and sitting around. Also, we haven't seen Momonosuke in over a year (not that I mind, as I dislike him the most). It would be like if Vivi was not affiliated with Baroque Works in any way and that she only hitched a ride to rescue a friend and then left after Luffy and crew dismantled Baroque Works.