I get tired of posting stuff and hearing “This is Old News” as if something stopped being worth remembering after a certain period of time had passed.
The problem with that attitude is that if the item talked about is important enough to be repeated, it is knowledge. If someone doesn’t know about it, they NEED to know about it, and therefore it needs to be repeated.
Sometimes people may not know what you know. Not everyone hangs out in the same circles you hang out in, nor does everyone hear everything you hear when you hear it – and, for that matter, that they don’t necessarily care about the same things that you care about at the same time either.
Knowledge transcends timeliness because it stays useful. Even if it becomes “obsolete” it stays useful because it gives a sense of past.
Remember that, please, the next time someone says something that you heard a long time ago.