Let me try to address your post. Fortunately SRF has not died (any rumors of its death
It is hard to predict why new discussions or reply posts go up and down, but they also don't reflect when members are reading/viewing content. For example you were less active from 2019 until this year in terms of reply posts and from 2014 until this year with new discussions.
A very small percentage of posts get moderated. In fact most of our moderating efforts are spent ensuring scammers, fraudulent accounts, on line adult and betting web sites, etc., never see the light of day on SRF. Your duplicate post was deleted as has been the practice on SRF since the very early days of SRF. The decision back than (and one that still holds true) was based on the fact that when a member posted the same content on multiple threads, other members who responded to one of the posts on one thread then would come across the same post on another thread and inquire what happened to their response.
We (moderators and administrators) continue to introduce new and relevant topics as we come across related news, but in reality, it falls to members to post new topics, questions and information related primarily to Corvettes.