I think the purpose is as much to create a discussion of [Free]DOS and its uses as it is to let everyone know about FreeDOS's anniversary. Besides, there may be

I think the purpose is as much to create a discussion of [Free]DOS and its uses as it is to let everyone know about FreeDOS's anniversary. Besides, there may be people who aren't aware of this particular OS. Many things on HN aren't newsworthy or are used by hardly anyone. The number of people using DOS is surely comparable to the number of people using Arc or Clojure or Erlang. Low numbers do not mean unimportance.