Q:

Show on 'other site' switch

Feature request / idea:
Sometimes a question seems to fall in between two sites.  An example might be PHP email questions, could be the code or could be the php.ini which often ends up being a system administrator.
So my idea is that there could be a check box to show it on another site as well. It would be grayed out on the other site and only visible to people with high reputation points, and they could approve it, and then everyone would be able to see it on the other site as well. Maybe they could add answers, or maybe it would just be visible and people could go to the other site to add the answers.
So for example, if the question was posted on Stack Overflow, there could be a 'show on Server Fault' check box. Which Server Fault  moderators / high reputation points users could vote to be shown there as well. These could also maybe be community-wiki so simplify the reputation points question.
One downside I can think of is that maybe this might create more confusion about what to put what where worse, and maybe that would outweigh any benefits.
Maybe it has been thought of, but I just thought I would share the idea...

A:

Question types need to be restricted to one site. It becomes way too confusing to follow if different answers to the same question are present all over the place. It would be more useful to define what questions belong where -- and place them in that location consistently, rather than having a dizzying web of interconnections that only Sherlock Holmes could trace. 

