Hello skboren, the “bit” you highlighted from mrsD did not in fact require any clarification as you took the quote out of context. As mrsD said, there is only a problem if your B12 levels are excessively high and you are not supplementing with it.

By the way, it is not good form to join a group to ask for advice one day and then criticize the most knowledgeable member of the forum the next day.