Jon12345 - 11:53 am on Sep 13, 2012 (gmt 0)

I notice someone in my niche has what looks like an auto generated forum, with tens of thousands of messages, 99% of which have only one message. It is now ranking 3rd in my niche. It came out of no-where!

Is Google likely to penalise this type of site? If I report it for spam, would they remove it?

Thanks,

Jon