the post may be dated , but there will be dozens of people over every few months looking for related info that need similar info,
so your posted info and any useful links are not wasted.
think about it, if you need info you do a search, you don't say only give me threads posted in the last week! hell,
the info you need may be in a link that's 3-5 years old, so you read the related threads, and you'll find the info you need!
its not wasted time to post good info on older threads even if the originating post starter is long gone from the web site.
that thread may be a decade old, but its still potentially very helpful to people looking for related info