I am downvoting Napoleon's answer and providing my own, as I have a feeling that the most important part of the whole close vs. delete idea has been missed here.
While things like:
- Whether question is of a good quality or not
- Whether it is salvable or not
- Whether it is off-topic or not
- Whether itself or any of its answers has a lot of upvotes or not
Are very important, the most important assumption (across entire SE) is that deleted questions does not appear in regular search results and can be seen only by high-rank users (or question's author).
As such we do not delete questions, if only we can (are not rude, offensive, unreadable etc.) and we only close them, because we want them to be seen by as many users as possible (so not just high-ranking ones) to avoid posting the same or very similar questions as a duplicates.
In simple words: If I ask a question (about ID -- the one that Napoleon hates so much) and you delete it then what will in future prevent someone from posting a dupe (if he or she won't see it) of the same or very similar content?
Posting a dupe due to not seeing deleted original results in:
- Artificially increasing number of questions
- Unnecessary triggering millions of internal scripts
- Adding a lot of work for other users and admins (for closing dupes)
In other words -- by deleting questions, not just closing them you are producing a very negative impact and you are violating most of the things that SE was build upon, around close vs. delete system.
In addition, closing questions is acceptable by majority of users while deleting them produces unnecessary emotional tension on many of OPs.
In even simpler words: With deleting questions you gain nothing (nothing achieved that you couldn't achieve with closing a question) and you loose a lot.
As Rand al'Thor correctly mentions in his comment (emphasis mine):
The whole system is designed not to let such questions be deleted except in an exceptional circumstances.
The entire SE as per se does not recognize any of these (above and below):
- Low quality question,
- Off-topic question,
- A question (or its answers) with little or no upvotes
As a reason for deleting question. No, period.
If you disagree, please, provide a serious backup that other sites does delete questions so quickly as you do here, at Movies & TV or that any of above reasons is incorrect. A serious backup, not your feeling.\
In my opinion Movies & TV should get back to the "mainstream" of sites, where deleting a question is really the very, very last thing you do and is limited to unreadable, offensive, rude etc. questions. That really shouldn't appear in search result or be seen by other users.