tags:

views:

54

answers:

1
Q: 

How do Reddit and similar sites keep users from voting on links and comments more than once?

I was curious and downloaded the code but I can't seem to find what I'm looking for. I thought I might find a database table with user ids mapped to link ids or comment ids. But I can't seem to find anything like this.

+1  A: 

This ticket points to some of the code involved: http://code.reddit.com/ticket/520

micahwittman  2010-02-01 18:59:26

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