Has anyone been forced to downgrade or reduce feature sets for free users when introducing paid plans? Is the generally accepted approach to grandfather in all existing free users?
We have experimented with partitioning features and always grand fathered the existing users. It has generally worked well. For most B2C services at any scale, you have a lot of new users signing up everyday so you don't have to worry about over optimizing on existing users. Its better to just keep them happy
