Is it important to contribute to older Fluther posts?

Section A
I should think the “shareholders” of the site (including all jellies who love this site) would prefer some effort to go into improving older posts as an ongoing concern.

What percent of your time do you spend searching, reading, or contributing to old posts?

What amount of effort, if any, do you think should go into that?

What’s the party line? What’s the word on the street?

Section B
Let’s use this very question as an example. I found this older question. As pointed out there, it’s assumed those jellies are gone or have stopped following the question. It seems to me posting there would be fruitless in getting current community feedback, but in the same breath I’m sure there are a few of you who feel this post is redundant noise (as well as being old hat). Is there a feed/view somewhere that shows activity to old posts, even if there is not GA showing in the community feed?

Section C
What about this? Q:“What is your favorite piece of art?” If I identify an older question and find I have something to contribute – a lifetime of research and pondering – and feel it may be of some value to someone – why would I necropost and contribute if skinny few are going to hear it – and it’s improper to ask the same question – and possibly not kosher to ask the same question in a slightly different way?

I’m new to the whole Q&A site thing. What’s the scoop?