> The Register asked Google whether the corresponding developer accounts have been deleted and, if so, how the company can be certain those developers will never be able to re-register under a different identity. We've not heard back.
This is Google we're talking about, they know everything about everyone and can connect all your various email addresses. And yes, they do ban developer accounts for life when they are found to be repeatedly breaching Play policies. Just look at r/androiddev for lots of examples.