In this thread (https://www.cubecraft.net/threads/official-rules.134453/), if you scroll down to the forum rule section, it will say 5- No Necro-posting. This is replying to threads which haven't been posted on within 2 weeks. They are not allowed to be revived (does not include forum games or news threads).
Here's what it says on the official forum rules.
5- No Necro-posting. This is replying to threads which haven't been posted on within 2 weeks. They are not allowed to be revived (does not include forum games or news threads)