I was amazed that this question, which was closed some time ago, appeared on the front page of the EL&U site today. I find out it is because the original poster edited it to add some text. Is it normal that closed questions can still be edited? Although I can see the point made for it (it allows people to improve them), it can also have bad consequences: in this case, it brings back to the front page a bad question, which was edited by its author in a way that doesn't improve it at all (added some semi-random links to other questions at the end).
So, shouldn't closed questions be uneditable?