Comment by ecaron

It may not be a big market that the masses are clamoring for, but it will soon be similar to services encrypting passwords in the database. The outside world shouldn't be expected to know about the existence of rainbow tables and the futility of md5-hashes. The educated, however, know what to demand, will expect their services to offer it, and will leave lacking-services for support-services - and in their exodus the masses inevitably follow (e.g. Hotmail -> GMail)