"Welcome to"?. LFS is so old that I would assume any self proclaimed geek/hacker would've already been aware of it. It has existed for over ten years.
So? I haven't heard of it before, and I doubt if many of my friends have either. Programming landscape is very big now and everyone has a finite amount of time for exploring it. I could use your argument to whine about how so many self proclaimed geeks/hackers don't know about Lisp and keep reinventing wheels all the time.
This means that stuff will be reposted. It means that old stuff will be presented as new. Sometimes it will even be upvoted to the front page. This is not a bug. It is how we have a continuity of community. The new folks need to be brought up to speed. It isn't bad.
I am curious if you realize you dont have to read an article that you have seen before, or about at topic you don't like, or whatever. It is ok. We won't ever know. If we find out, we won't judge you poorly.