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Well, they're not completely ineffective. How many people do you know that have two or more SSNs? How about multiple email addresses?
by aneesh 18y ago
Well, they're not completely ineffective. How many people do you know that have two or more SSNs? How about multiple email addresses?
- tomsaffell 18y agoI've heard of it going the other way, i.e. one SSN maps to multiple people (or at least multiple names).
- jshen 18y agowell there are two different issues that overlap a good deal. 1. wanting a way to uniquely identify a user that is easy for the user to remember (email works great) 2. wanting a way to prevent users from creating duplicate accounts Using emails works great for 1 and is a decent low bar for 2. There are no good answers for 2 so using an email address is the best I have seen.