Gresham's law doesn't work in strictly free market economy. By definition, debased coins will drive out regular coins only if you force the acceptance of both c

Gresham's law doesn't work in strictly free market economy. By definition, debased coins will drive out regular coins only if you force the acceptance of both coins at face value. It only works under legal tender laws. If people read the conditions of the free google account they realize that the service can be terminated at any time for any reason without warning, and there's absolutely nothing there about any corrective mechanisms. Contrast this with terms of [especially national] domain name ownership. Anyway, given the number of people who will give their data to such a service under such conditions, you may well be right that some regulation would be useful, especially around getting your data out in some short time period after account termination. (But only to holders of the valid authentication credentials.) Forced email address portability would be also nice (provider would have to forward incomming emails for a reasonable fee or for free), for some limited time, maybe a year.