Value-add? If I go, "Tam was talking about Y with the Colt Pocket Hammerless and that reminded me I had similar issues, X, with my Colt Pocket Hammerless." With a link to Tam's post and then I go on about a new subject: X.
"Exploring the ethics, morality, business, politics, culture, technology, practice, strategy, dangers and fun of guns."
It's not hard to come up with your take on a subject or generate brand new stuff. Go to a gunshow, go out shooting, play with the stuff you got. I do it every day.
Of course I would have to come up with content worth lifting these days...