Why no auto-recognition of URLs in text documents?

I mean the ones you type in yourself. If you save a page full of links in rich text mode, the links still work (albeit in an external browser). But if you type in a link yourself, you have to manually “activate” it using the Make Link command. (Same goes for email addresses.)

This is odd. One of the most attractive features of DT is its ability to automatically recognize internal links, ie to other records etc within DT. Yet the same facility does not apply to external links. Shouldn’t it?