[masterkrang]

So that people don't easily game the system. Would you prefer Twitter or just not logging in at all?

[huhtenberg]

Not logging in. Twitter accounts are dime a dozen, so that doesn't give you anything. You can limit by cookie/IP/browser fingerprint [1] if you'd like. That'd be as good as 3rd party authentication and far less intrusive.

[1] https://github.com/Valve/fingerprintjs

[thecupisblue]

I'd prefer twitter, and a tweet button. Twitter is less personal and reach is bigger than on facebook.

[richardbrevig]

Agreed - I hesitated to sign up. Twitter is better.