Please note that, yes, at time, there are discussion between the PMC and the board which are done either or the board@ list or in "private" on private@.
This is between the board and the PMC, of course. However, why does it fall to the *board* to then bring that conversation to "the public". Shouldn't it, logically, fall to the PMC? The board is "responsible" for the healthy operation of the PMC, but the PMC is responsible for the healthy running of the project and the community. If a PMC is so dysfunctional that it neglects to involve *its own community* in what is going on, then it kind of shows that the PMC did have issues, doesn't it?