I am not exactly sure what Fae thinks is being proposed. Certainly, we've received advice saying that on issues like those we've been dealing with in the last couple of weeks, we ought to minute which trustees are in favour of, and which against, particular proposals. (i.e. putting us more in line with the Wikimedia Foundation's practice). I don't know where the idea " It may also be used to ensure all trustees vote the same way in a public vote" comes from.
The relevant part of the existing Trustee Code of Conduct says; "I will participate in collective decision making, accept a majority decision of the board and will not act individually unless specifically authorised to do so."
Many thanks,
Chris