I sometimes wonder if the people complaining of people posting on old threads, are the same people complaining that people are creating new threads, without searching for existing threads with their issue/comment.
I rarely, maybe never, add on to an old thread, but I personally don't think it is a problem. Especially if it adds useful information that might help someone in the future.
Also, sometimes the solution to problems are not posted in threads, and someone else may have a solution and want to post it, or they just want to find out if someone has found a solution, but have not posted it yet.
I honestly find it more annoying when people jump on a poster for adding on to an old thread, without addressing the issue that the poster was asking. It is basically a pointless post that doesn't help anyone involved.
It is incredibly annoying when a newbie replies to an old thread
I never understood why this bothered people. Would you mind explaining why this is a problem? You have posted a lot of potential solutions, but I don't really understand why this is a problem that needs to be fixed.
In other forums, I have seen comments saying that the original poster in the thread may not be around anymore to reply, or that information may have changed since the threads creation. I guess this might be true, but still, how does this negatively impact anyone involved in the thread?
If it bothers someone that much, just don't reply to it.
It is also distracting because it takes some time to realize that it's not a relevant thread anymore.
It takes literally seconds to see when the thread was originally posted.
Also, what is not relevant to you, might be relevant to the person posting, other people in the thread, or maybe someone that has not seen the thread yet.