This server has "authorized fetch" enabled. It has been on since shortly after it became an option. Having authorized fetch enabled means many things, but perhaps most importantly, that you may block threads.net instance and they won't have access to your data. While others on the server who do want to interact with Threads users, can.

Those on instances without authorized fetch enabled don't have a choice unless the instance itself blocks threads. #TMYK #Threads #AuthorizedFetch #fediblock