GREAT THREAD!
I remember starting a similar thread as I was first waking up. As with all of the comments above, the very notion of "speaking for God" is one that is tilted in their favour much like the old witch-trials of the middle ages were.
Kind of like: Well we speak as "directed" by God, so you cant question anything we direct or command. If you question anything, then you are questioning God. But if we change our minds with "New Light", then it was because God changed his mind. If you doubt our "spirit direction" then you are to be punished.... and the circular reasoning persists!