Pretty soon we're going to be seeing some changes to the closing system. To read all about the changes, check out this post on Meta Stack Overflow: Closing changes: [on hold], unclear, too broad, opinion-based, off-topic reasons, bye-bye to Too Localized.
As a part of this, we're going to have the ability to incorporate some custom off-topic close messages. This is detailed in item 5 of that post:
5. Off-topic closures will include feedback on what specifically is off-topic for that site. (new)
- Each site will have a list of its own specific pre-selected “Off-Topic” reasons
- Each closer will either select one of the site's standard reasons from the list (for instance, “Recipe requests are off-topic, although recipe replacements, etc. are allowed”), or,
- Closers can enter a free-form reason ("Your question appears to be about 'Cat Grooming', which is off-topic for Stack Overflow.")
Free-form reasons will be presented as a comments, but the close dialogue will refer the reader to the comments for more info
- Free-form reasons picked by closers will be available to subsequent close-voters on that question as one of the selections from the list
- These lists will be determined by the communities, and moderators will be able to update them, subject to review by each other, their community, and the SE team
Reasons will need to be specific enough to make it clear to most readers what is and is not allowed (off-topic reasons of the form "Things that are NOT X" will be discouraged).
This is also the place to address any closing reason that applies to one site but not others (for instance, the "General Reference" close reason on English Language and Usage is moving here).
So, we need to determine as a community what these messages should be. Are you noticing common patterns when voting to close questions as off-topic? Perfect, post that as a suggestion!
What do you think our pre-selected "Off-Topic" reasons should be?
The changes are live and we have added our custom reasons based on the feedback from you all. These are not set in stone, if you think something needs to be changed, let us know!