The question Examples of common false beliefs in mathematics, was one of the best and most successful questions in the history of MO. When we discussed closing it, it was argued that after 164 answers and a year and a half, perhaps any added answer will not represent "a common false belief." (I was against closing the question, which is still my view.)
Two days ago the question was locked and frozen in a very drastic matter: as a result, it no longer shows in the list of highly voted questions, no editing and voting are possible, and it is not even possible to add comments. The question does not appear in the list of all questions, or even in the lists of all "big list" questions or "mathematical education" questions (Those were its two tags). On top of that, the following message appears:
"This question exists because it has historical significance, but it is not considered a good, on-topic question for this site, so please do not use it as evidence that you can ask similar questions here. This question and its answers are frozen and cannot be changed."
This message does not express the common opinion we had, even among those who wanted the question closed.
(It is possible to lock a question without freezing the entire thread.)
I propose to delete this message and unlock the question. (To be clear, I do not propose to open the questions to new answers.)