The cost of that freedom is everyone who uses/would like to use your service, is free to complain loudly and campaign for change. If you're confident your busi

The cost of that freedom is everyone who uses/would like to use your service, is free to complain loudly and campaign for change. If you're confident your business model can survive that sort of criticism, then you are free to do as you please. But without a monopoly and/or high cost of entry, eventually someone else is going to come along with different, more acceptable policies, and you lose. Facebook is currently playing the customer lock-in/high cost of change by preventing you from exporting your data conveniently.