User blog comment:Nick D Wolfwood/Routing for Ichigo, the power stat analysis/@comment-1454424-20100819172511

As it so happens, Kubo addressed all this "Arrancar Arc sucks", "Bleach is broken" whining recently in his tweets,

時々勘違いしてる子がいるから言っとこうかな. 読者にあるのは作品の話を変える権利じゃない. その作品を読 むか読まないかを選択する権利だ. 気に食わなければ読むのをやめればいい.

Sometimes I wonder what to say to kids who makes these mistakes. Readers don't have the privilege of changing the story. It's whether they would read that story or not is the privilege. If you don't want to read a story, then you'd better stop.

もしBLEACHよりも面白いものが描ける才能があるなら、すぐに漫画家になるべきだ. 面白ければ必ずBL EACHより成功する. 絵が描けないと言うのなら、努力して編集者になって漫画家にアドバイスすべきだ. 本 当に能力があれば、どこへ行っても歓迎される.

The thing is, if you have the talent to draw a story that's more interesting than Bleach, then please become a mangaka soon. If it's good, then it'll definitely be more popular than Bleach. If you say that you can't draw, then do your best and become an editor so you can give advice to mangaka. If you really have the ability, then you'll have good reception anywhere you go.

才能も無く、努力もせず、そのくせ与えられるものに不平を言って、努力する人間の足しか引っ張れないような 奴は、目を瞑ってどっか隅っこに挟まって、口だけ開けて雨と埃だけ食って辛うじて生きてろ.

Because if you don't have the talent, nor have the effort, and yet you want to tell me that pathetic little complaint, you're just some guy who's trying to hinder a person who's actually working hard, so close your eyes and hide in your corner, open your mouth only to eat rain and dust and maybe you'll actually live somehow.

(Translation credit: Maaru of FLOL)

Kubo was not address Aizen sucks in his tweets as the person who provoked him was bashing Orihime. But I think Kubo's tweets applies Aizen and Ichigo and anyone else you can think of. Kubo knows what he is doing and if he has told his editors that there will be a "mini arc" (which may well be the Deicide arc) and then a "long arc". Then he knows how to proceed with the story. So from his point of view there is no problem. I for one am going to trust in Kubo's ability and see what he serves-up next.