I've been nosing around for awhile and I have learned more here than in school. I figured it was time to join. I probably won't post a story, err 13 lines for a while but will comment on what I like. Is it OK to ask why you all have done certain things in your stories and how far back is OK to post on the stories. I've been reading for a couple weeks, mainly in the shorts.
Welcome to hatrack. I don't see why you couldn't go back a ways into the archives. Some stories might have been submitted and the poster on to other things, but there is no reason why you couldn't.
It is best that you make note of that in your post, so it doesn't introduce a new chain of new comments into forgotten stories on the forum.
Come to think of it, it might be best not to bring back too many dead bodies.
Comment as long as you like, and post your 13 when you feel ready. Concerning bringing up old stories, you could always try emailing the author of the story, if it is dead, and ask certain questions about it.
I would love to answer any questions such as those. Writers always love to talk about themselves (or their writing).
As for commenting on (or asking questions about) old stories--you should note that while there is a small core of people who stick around for many years, and a pretty solid batch who are active for maybe 6 months to 2 years, there are also a lot of people who post one story and disappear, or at best hang around for only a short while. I certainly wouldn't post questions to anyone who does not seem to be currently active. An email query, though, as JustinProse suggested, makes perfect sense. It's probably also the preferred method for any topic whose last reply is a more than a month or two old.
(You can also ask the critiquers why they made a certain comment, if it isn't clear to you.)
[This message has been edited by rickfisher (edited April 05, 2008).]