So you want to change this rule? It has no time limit on it. That is the problem here nobody search the forum. They just start a new Thread. So we now have 100’s of the same topic.
Search
The search function at the top of the community site is extremely effective and robust. Before you create a new forum topic, we recommend using search for similar topics, blog posts, or web pages that may contain the information you seek. Making a new thread on an existing subject can result in your thread being deleted or, if you continue to re-post the same content, the loss of your forum privileges for spamming.
Plus somebody will bring up this one too. This is basically for the OP to stop them form bumping a thread that doesn’t get enough replies. But somebody will say if you reply to a topic that is over 6 months that is bumping.
Do not “bump” posts.
The act of posting simply to bump a thread is considered spamming. This also includes bumping old threads for no reason (also called “necroing”).