I'd say that's a feature if you let individuals do that, but a bug/fraud otherwise.

A while back I heard someone propose the idea of "delegating" your vote to an arbitrary person and they'd vote on individual vote items on your behalf, or consequently "delegate" it yet again to someone above. Essentially creating a giant hierarchy of representation.

Which is already the way things work. All our decision power is delegated to politicians, and we don't get paid and we cant revoke it either, we can only transfer it to some other politician at the end of the term of the current one.

I have no idea. But the current state of affairs seems much worse. Politicians are already bought/influenced by corporations/entities in the open (and of course through back channels as well). There is immense corruption, some of which is even legal (lobbying).