It's very helpful for doing support stuff 'cause people always drop links in email which don't get translated to the web interface as clickable links. So this fixes that problem.

If I type http://us.imdb.com/title/tt0379786/ then I make you have to copy/paste because it won't be a link for you (though LJ may fix that for me, I forget).

Anyway, handy for me. Less with the copy/paste stuff. :)