User blog comment:Xilinoc/Ch. 545 - Blue Stripes/@comment-4822693-20130709222211/@comment-11051098-20130711153225

Ichigo did demolish large parts of the landscape with his Bankai when he fought Aizen after his Dangai-training. Luckily that was in the Seireitei, outside of the area the real Karakura Town was moved to, and not in the real world.

It's probably gonna turn out along those lines, that Ichigo will be based in SS from now on, after the war, and if his full power exceeds even his level after the Dangai-training, he will definitely need a seal on his power whenever he visit his friends in the real world.

I imagine Mayuri would be pissed if he had to send teams to the real world to rebuild entire mountains every now and then, after Ichigo used his Bankai.