3 ms·

Why don't you let unregistered users vote?

• mattwijas 16y ago
  That would probably make the system more susceptible to gaming by spammers.
  • spicyj 16y ago
    How does forcing registration help? The main barrier is that you need to answer a couple of questions and get upvotes before you can upvote others.
• tiernano 16y ago
  I'm guessing (don't know for sure here) its an anti-spam measure...
• bkhl 16y ago
  SO probably doesn't want too many unregistered users floating around. Also, one of success metrics for an Q&A site is the number of registered users. So, it does make sense to force users to go through almost painless process of registering before they really start engaging in the site.