When getting, a notification, of a new comment(to somebody esles problem), one get a link to it. However, if he wants, to see, the comments, or the attempted, paths, s/he still has to solve it again. It's not a problem, at all, but since, it's already in discussion, wouldn't it be better, if he gets to view the comments, and paths, even without solving it(again)? Just as one, can view his probs, comments, without solving it again.
This doesn't mean, that I think that comments, should only, be blocked, for the first attempt. But instead of using a "http://www.goproblems.com/prob.php3?id=xxxx" pattern a "http://www.goproblems.com/prob.php3?id= ... mentview=1" or something. So that one can view them, when s/he's visiting, the link in the notification...
{Posted by santa c}