I posted Why would cookies be vanishing in IE6/8, and what can I do about it?, a question about a problem with cookies in IE for a PHP site, without the best diagnostics to start off with. One user said that it was hard to tell from the limited information I gave and suggested using Fiddler. So I added an edit to my question with further details pulled from using Fiddler.
My original question received four answers shortly after it was posted, and after I edited the question to specify further diagnostics, it does not seem to have received new replies.
What should I do in the future if I post question X, and later have additional information Y to include? Are there appropriate ways to draw more responses?