Fennix wrote:
Really want to understand this question. Why does this question often appear on what gmail shows as "new threads?"
Maybe GMail ignores the References header if the subject changed.
But most threaded mail clients will assume the author knows what he/she is doing when he/she decides to reply to a message. In the threaded world, replying is not just a way to specify the address to send to, it also specifies what thread the message belongs to. Users who do not use threaded mail clients usually do not realize this. I blame the mail clients because they fail to make it clear what Reply really does (they don't show the References header at all - if they showed "In reply to: [link]" above the To: field, more people would realize what they're doing, and the client could also give them the opportunity to easily (with a [Clear] button) delete the References header if what they're sending is not actually a reply).
Kevin Kofler