The moderators have been cleaning up and deleting closed questions. While in principle, this is good to keep the site clean, it has the huge negative effect of reducing our hard earned reputation. I answered the questions in good faith, but now I've lost more than 100 reputation points. I know that in CSTheory.SE, we only ever deleted spam, but almost never deleted questions.
In my opinion, closed questions (with up-voted answers) should not be deleted. It is not a bad idea to keep closed questions around, for the following reasons:
- Closed questions quickly fall down the list and do not appear on the front page.
- Closed questions provide a record of what questions are not on topic.
- Closed questions can also be referred to if the same question appears again, thereby avoiding any debate or disgruntled feelings.
Can someone point me to where in the SE general policy or in the CS.SE policy it states that closed questions will be deleted? Should (non-spam) closed questions be deleted by moderators?
After doing a little investigation, I found the following on this page http://cs.stackexchange.com/privileges/moderator-tools:
Closed questions that are of no lasting value whatsoever should be flagged and deleted.
One of the deleted questions was Why does Knuth persist with MIX/MMIX?. This is the kind of question that could reappear. It's a natural question, even though it was judged to be off topic. Leaving the question around would be useful for other people who wish to ask a similar question, or even those who ask questions about what is in the mind of some author when they wrote some paper or book.