If I did think that you called me stupid, we'd be having a wholly different discussion. But, as the rules of the forum state, take everything at face value, believe nothing, and question everything.
To your point - there is a very objective measure of utility (as I mentioned above), and in the case of obsolete forum posts it is very simple - does it have value in the current moment (the criteria is open for debate, but all it really takes is a grain of salt in your head and some basic observation skill to see what is relevant - it's not that hard). I never stated that I alone know what is useful in every instance, but I do know what is useful to students in general. And most other members do as well. If something works, no problem have at it.
But you can't tell me that your view of utility is so different that you fail to gauge the (sometimes) severe lack of meaning in many of the posts that appear in these long forgotten threads. I linked an example above, that revives a thread about a DEAD company. And there are many similar examples - that tackle issues that are of 0 relevance whatsoever, regardless of your measurement standards.
There are also examples of useful threads revived (albeit rarely), and that was never in question; something FW pointed out and I should probably have accentuated in my original post.
What is in question is the objective value (not subjective, mind you - mine or yours, or anyone else's) that the viewers receive from such revivals, and does that measure of value justify them being revived. I say it does not unless they meet a tangible criteria. We can have a different discussion about the criteria if you'd like, but the point stands. That's all.
P.S - whoever reads this thread will know instantly of whom I speak, no need to call them out. You're new, but you just have to browse a bit (say last year), to see the pattern quite clearly.