User blog comment:DancePowderer/Where There's Vinsmoke, There's Power/@comment-2226235-20160123010434

The fact that Big Mom is working with them is what got my attention. I can't imagine a Yonko would work with someone who couldn't give them something, which means the Vinsmoke Family actually has something to offer to someone as powerful as Big Mom. That means they must be pretty damn powerful.