In the Forums, we want to keep information current and relevant. Threads may be closed because they are no longer relevant or accurate. Closed threads may be viewable, but new responses are blocked. You can always reference an older, closed thread in a new post if your question or comment relates to an older post.
We also close threads after a period of inactivity. Older threads may also be archived if the thread has not been viewed in a while. This allows us to keep the most current and accurate information available. This also helps with Search Engine Optimization, so that customers searching an issue can see easily the results posted on the Forums.