There are some people who believe from the very first series (1903) all the way to 1919...baseball was corrupted during the seasons, and up to the World Series. This banning business was the only way to get players/coaches into the mindset...it wouldn’t be accepted.
The great first baseman Hal Chase was known to have bet on his games and probably threw games. He continued playing. There were even reports that Cobb and Speaker were involved in fixing a game.
Judge Landis was a Cubs fan.