There are times when we use Miro for things that should be “what happens in Miro stays in Miro” to get honest feedback and thoughts. Unfortunately, this is not possible because if a group uses a Miro board for this, the history shows exactly who did what. That this is not available is part of your FAQs. When might you be implementing something like this? Perhaps a checkbox that simply hides the history on a board (permanently hides for that board).
