The Indians were doing it in the 60's and other teams more recently (The White Sox and Mets have been mentioned). And of course the Phillies back in 1900.
I think some of the outrage is designed to hide guilt, like folks did with the steroids.
I would not at all be surprised if various players have been part of similar schemes at some point in their careers.
But sure, let's suspend 50 guys for a year.