I think Grumps' point (valid, and noted by others in the past week or two as well) is that MOST people who are currently posting to the old, previously long-inactive thread THINK they are participating in a current conversation...i.e. most (particularly the first one or two 'new' posters) didn't notice the post which came before theirs is from, say, 2013.
My favorite example of this is the "Jazz is Dead" post....LOL..people jumped right in as if the convo had been started last week....which to me begged the Q: .if the 'debate' a decade ago was whether it was Dead...shouldn't we currently be debating whether it is Dust (or at least in a Cryogenic state) in 2020 ????
And he is correct, many 'current' replies are written in such a way as it's clear the replier is trying to engage a 5-10 years past participant in the convo....
It IS a silly by-product of the new 'format', I gotta say....it'd be nice if people were aware that they were resuscitating an old convo which had died out years ago.
This is NOT to say there isn't good, relevant info in the resurrected post....but the thing is...these threads are still extant in the archives....so they'd still pop up in a search of a specific query, thus providing the 'relevant information' an individual may be seeking (ostensibly).
Do they have to appear in a current 'recommended' list ?