And the prize example of this is "Gaining a RAF Pilots' Brevet in WWII", which its very wise Moderators have allowed to ramble all over the place (and on which no harsh word is tolerated).
In consequence they and we have the most popular Thread on "Military Aviation", with the highest number of Posts and "Views" (bar "Caption Competition", which is clearly a case apart), and which has been running since 2008 with no sign of running out of steam yet.
Long may it continue !
D.