I don’t want a board where nobody ever posts or discusses serious news events; or for that matter one where nobody posts or discusses serious personal events.
If people could and did go ahead and post those things for many years even though the name was wrong, as did indeed happen: I very much doubt that people posting mundane and pointless things will stop posting them even though they’re now included with the non-mundane and non-pointless under “miscellaneous and personal.” Which name does include the mundane and pointless a whole lot better than the old name ever covered those things that aren’t.