According to the help center
When a question reaches 3 reopen votes, it is no longer closed, andnew answers may be submitted.
At least three different users expressed interest in reopening this question (that is subject to different opinions - some find it valuable in SO and others don't) which would match the condition expressed by the documentation (at least three reopen votes were given in that question). The problem is that the votes were in different moments.
This question intends to either readjust the text in the help-center to
When a question reaches 3 reopen votes (the votes need to be around the same time), it is no longer closed, andnew answers may be submitted.
or to reopen the question.