I know, Pagerank has not been updated for ages now and means nothing. I have a question about a special case: Lets say there is a 10 years old domain with plenty of good backlinks. It has high PA/DA (> 25) and CF/TF (> 15). These metrics were not manipulated. No spam, nothing suspicious. However, the website expired some years ago and has not been used since then. In a lot of these cases those domains keep a good pagerank (PR 3-5). But sometimes the Pagerank is 0 although it was certainly much higer in the past. I see this case quite often even for domains which were used for governmental purposes in the past. Good backlinks, no spam, good PA/DA/CF/TF but PR = 0. Does it mean that the backlinks are devaluated now and the domain is not good for PBN anymore? Why is there a massive PR-drop for some expired domains but for others not?