They can not correlate that data with any form of identity with any accuracy.

They can't even detect fake and duplicate accounts, which would be trivial in comparison.

> They can't even detect fake and duplicate accounts, which would be trivial in comparison.

They almost certainly can, but due to capitalism, they have a business interest in not really removing these accounts.

That would be incredibly short sighted given the problem such accounts are for them and that they do go out of their way to ruin real accounts in search for them kind of reveals that they can't do it.

Much like the twitter bots to them, lip-service will be paid, action will be taken on some low hanging fruit so they look like they're working on the problem, but they will not make a concerted, legitimate effort to clean them up.