So if you're making a post and you type this:
`Foo bar >>/tags/preening baz quux`
You'd get this this (interactive, of course):
Foo bar >>2588689t baz quux
Perhaps this "inline" tag box's height could be reduced, so its vertical alignment with the surrounding text looks better.
EDIT: The syntax is just an example. If >> is used, then "/tags/" is needed because there are some tags that are fully numeric, so it would be impossible to distinguish between image X and tag X where X contains only numbers. But with a different syntax, even the "/tags/" part could be omitted.