That is a way to get your post indexed quick if you need it to be. Otherwise, new posts are PR0 and not really worth it. Very good question though!
If you do some quick research on CL you'll see that most of the links posted by users have the following tag rel="nofollow" .. so as far as link juice; you'll get none. That is not to say you won't realize any benefit because that is not true. You'll obviously get traffic as long as your post/offer is good.