Like everyone else already said, Google (the bots) will ban the sites that are suspicious and don't conform to the spidering criteria/ rules. The first job of the bots are to index, then prune.
the site look to have is been around for more that years time , all the stories that are posted are not from any othere site all the atories are from ratevin.com itself , the onwer itself post all stories , in case google doentban this site , i think this is a good idea to achive high google rakings with a socialbookmarking site with keyword repetition an othere black hat methods , as far as google isnt minding it then y should we ???
yar why should someone submit story which in that social bookmarking site itself , the post does not link to any external but to itself , (plz do check out the site before blindly commenting on it )
"xat 2009 answer key" ?? that's about as difficult a phrase to rank for as "Indian donkeys wearing ladies underwear" or something equally ridiculous Spam or no spam, any site could rank well for that phrase - by doing very little SEO.
The combinations are really, trully endless everyone. It all boils down to how much imagination one has. Anything "unique" is always good.
buddy this is not a spam site. This looks like a legit site. Maybe that particular submission is a spam but the site itself is very legit.