I came across this article in the UK Guardian, which explains the death of Buzzfeed. Looks like it is not just our beloved DPR and other photo sites that are slowly becoming zombies, but a whole raft of sites based on the written word. The article talks about news sites, but I think it is valid for a much wider spread of content producers.
Looks like people are increasingly getting their information from YouTube and Ticktock video. It was striking to see in the later days of DPR, just how many people posted links to some video or other. Looks like "DPReview TV", was a desperate attempt to keep the DPR ship afloat.
Maybe it was not the "evil" Bezos, or a fall in interest in photography, but a shift in how people get their information.