I submitted the article and must add that the data in it is rather unbelievable.<p>A different article has GroupOn's Average Revenue per User at 8.6 USD <a href="http://www.tnl.net/blog/2011/07/24/how-much-is-a-user-worth/" rel="nofollow">http://www.tnl.net/blog/2011/07/24/how-much-is-a-user-worth/</a>.<p>One more article has the average revenue/subscriber at 9$ <a href="http://www.dmnews.com/groupons-q2-revenue-rises-but-net-income-free-falls/article/209385/" rel="nofollow">http://www.dmnews.com/groupons-q2-revenue-rises-but-net-inco...</a><p>This is still 4 times more than LinkedIn's average Revenue per User. Where as Linked in has a valuation 47 times the Revenue/User, GroupOn has "only" a valuation of 31 times the Revenue/User.<p>Assuming the data is correct, I really don't understand the "GroupOn bashing" in Hacker News comments. All of the last articles about GroupOn I read where predicting that this Ponzi-scheme has no future.<p>Is there some fundamental metrics I am missing? Or is GroupOn really a very profitable business once they get the expenses under control?