Agreed [Knowhow], and while on that topic seller, please share the trends.  IE Quarterly financials for 4 quarters, and/or a few years worth of annual data.

Besides the fact that this is the most basic information about a potential investment to analyze it, it addresses a concern when reviewing this particular business.  

The concern has already been expressed here.  In this site, expenses (especially to top users, or users becoming top users) are likely to continually increase as the bonuses of each account steadily rise.  If you don't get more new users on a regular basis (which you pay 0 or little to as they build up their game), the balance tips and the game loses money.

You can make changes to become more profitable, but at the risk of angering and alienating your users, and thus your income stream and trust in the community.

Related, you probably should publish statistics on new returning user growth or perhaps number of page views by users that are less than X months old (3 months might make a good dividing line?  seems to take several months to build up to anything even remotely worthwhile to pay-out).