netmeg - 12:45 pm on May 28, 2013 (gmt 0)
Ultimately, the quality of your traffic is up to you. Google protects the advertisers over the publishers every time. It doesn't matter if you had nothing to do with the traffic or the clicks, the advertisers are protected at all costs. That's just the way it is. And the advertisers want their ads on sites that are likely to send converting traffic.
(I dunno if it could be the reddit links, but I suppose I wouldn't be surprised) Google could definitely be more transparent in this area, but fraud is so rampant they probably never will be.