Management Controls for Blogs in Delve
There are not any management controls for Blogs within Delve. I don't see a way of deleting them. I don't know if there are any controls for storage. You can actually create new lists and libraries and manage permissions in the Blog area.
For large companies, this can become a major compliancy issue if we cannot have control like we used to when the Blogs lived under the My Site.
This needs to be moved back to the My Site or we need similar controls if this is intended to be an Enterprise service.