While composing an answer to Sandbox style Meta for characters or story help? I noticed for the first time that the [something.se] shorthand link for denoting other stack exchange sites isn't supported for questions and answers only in comments. I had a good look at the markdown help and realised that there's a whole host of shorthand links that are only supported for comments rather than being generally usable.
My question is two fold;
First is there a specific reason we can't have those links supported across all entry modes?
Secondly if we could have them across the board do people think we'd use them? Because there's not a lot of point having a feature we won't generally use.