There is and open league w/ 1 member for the 1998 season card set. I do not see such a set available. How do you join this league - where do you go to draft?
Strat puts out a new season about every 4-6 months. Once it was 1998 and once it was 1977. Currently it is 1964. The leagues that you are referring to were started but then the game was no longer available. I don't know why they are still showing on the leagues list but you can't make teams for those seasons.
They joined back when those sets were still out. Those leagues have said that for months/years now. just disregard them. don't know why strat hasn't deleted them