I have seen rules about this on a few forums and social stigma on almost all. Why is that? To me, nothing about the concept of continuing a thread even after long inactivity (in light of some new information or for whatever other reason) seems bad. It feels far more preferable than having two or more threads discussing the same topic with nothing really linking them. Is the stigma something that evolved way in the past due to some practical reasons and has been carried to the modern times through tradition, it has no reason at all (apart from the personal opinion of some moderators, and proliferation through tradition), or is there some practical purpose even today that I am simply missing? Or maybe even something completely different?