[bradknowles]

Wait, so they are actively encouraging Sybil attacks?

See https://en.wikipedia.org/wiki/Sybil_attack

[woodruffw]

I assume it's a reference to the ancient Greek prophetesses[1].

[1]: https://en.wikipedia.org/wiki/Sibyl

[iratewizard]

I think it's a coincidence. Sybil is reference to the book / movie about multiple personality disorder. Both deal with multiple personality systems.