Last week it came up "Providers using Prescription Drugs" thread that it is not that hard for mods to figure out who the unregistered people are that are posting. A couple post on this actually were in that thread.
Another member said that they would leave if their information was ever given out or something along that lines.
I think that is were the mods knowing our information is coming from possibly.
https://www.daycare.com/forum/showthread.php?t=62034