The board seems to delete topics that are over a hundred pages ago

Hello, this might be a stupid oversight on my part, but,as of 1st of April 2023, I don't seem able to see threads that are older than June 2016. I don't see board pages with numbers over 100. I'm afraid we're losing some important nuggets of typografic knowledge - in WayBackMachine I am able to see some posts from the 2012, but some of it is fractured or altogether missing. Is there a way to get those old threads back?