It'd be nice to have onebox or "magic" links when on meta sites. If we post a question about another question on the parent site, the onebox preview like on chat would be helpful.
For example, when I paste the URL
http://meta.stackexchange.com/questions/57286/what-links-and-sites-are-handled-specially-in-chat in this post, it will show up as a hyperlink:
I propose that a mechanism be added to Markdown or the editor to onebox questions like this instead:
Note that a real onebox is an HTML construct; the above box isn't a demo but a screenshot. Having the exerpt and information provided by a onebox would make it easier to discuss questions on meta sites.