User blog comment:Akali95/Kuma's Nikyu Nikyu no mi/@comment-4812569-20120219124015

I reckon he's quite responsible with his df, like whitebeard holding back his quake abilities so it doesnt create tsunamis everywhere. When he extracts pain and stuff, it has to go SOMEWHERE so he's probably responsible enough not to let all that kind of stuff floating everywhere XD.