Support Week Sep 10-16

Bogus PI signups were the main problem this week, but users should not be able to sign up as a PI now. Also maybe we don't want to ask people to respond to pl_mom messages as this spawns a lot of support tickets.

Explaining the whitelisting feature of the current API was bothersome.

Mike and Andy were not aware that they were on support duty so David carried the load himself. Possibly someone should write a script to inform those on support each week that they're up.