When should Worldcons sign on to PAF?
Worldcons are required to sign on before they know what their profit is. The whole point of PAF is to return Worldcon profits to WSFS, so there is no point at all in a Worldcon joining PAF after the convention — the PAF money would then just go into its surplus which is not the point of PAF and which would not be what section 2.9.3 is asking for. In every case the Worldcons to date have signed on to PAF while they were still bidding.
