It ends up a lot easier both for you and others reading the forum if you keep to one thread-that you start. That way it's easy to keep issues straight, and your issue doesn't get confused with someone else's. Think of it as common courtesy to your fellows- you wouldn't want them all over your threads, so you should not be all over theirs.
Don't post account or personal info in public (though ticket numbers is fine).
Finally, keep »Site FAQ
»What are the Rules on Posting?