And this is a good thing. One forum usually auto-locks threads older than "X" - this can be good for sanity but sometimes detrimental.
For example, this thread I opened several years ago keeps being reopened but still with relevant information.
I never quite understood the problem with necroposting, as long as it's about the same subject. It's a lot better than to spawn the same thread endlessly, repeating things ad nauseum. It seems to be a lot better to have an older thread resurrected and extended than to have a plethora of partial threads.
One of the issues I see is to keep the "updated threads" queue free from discussions such as this one that have gone completely off-topic - the title becomes quite misleading for the passersby.
I don't see anything wrong is posts are still relevant.
On that note, I will go on radio silence on this thread.