Why does it matter? I'm tired of seeing people link other discussions. If it's a live active discussion, thats one thing, but a dead discussion from yesterday?....
The comments of a submission are valuable to those other than the participants. To readers that don't or won't comment, the concept of 'live active discussion' is moot. In fact, I could argue that it's most beneficial for a reader to wait until the comment activities die down.
Either way the link to another similar thread is an odd thing to be tired of.
Either way the link to another similar thread is an odd thing to be tired of.