Changing license terms, aggressive changes to the API to disallow competition, horrendous user experience that requires a support contract. I really don't think

Changing license terms, aggressive changes to the API to disallow competition, horrendous user experience that requires a support contract. I really don't think there's a limit to what I've seen other companies do. I generally trust libraries that competitors are maintaining jointly since there is an incentive toward not undercutting anyone.