Adsense rejection, "Not enough content", 500 unique users daily create content on it

Hi guys,

My site http://word-cloud-world.com got rejected by Adsense due to lack of content.

It's a unique browser game, it has 300-500 unique visitors daily, it's a persistent world with infinite space where users fly around and leave their messages. It accumulated over 65 000 messages in last three months.

I think it would be an ideal place to advertise some other sites with games. But Google says it doesn't have enough content, but "content" is created daily by people.

Does anyone have any idea how to make it more Google friendly?

 

Yes, it's true. Because when I tried to open your site in Firefox I just received a blank white page nothing else. And I tried on Opera there I got message "word-cloud-world.com wants to permanently store large data on your local computer - OK - CANCEL" and a black blank page that's it. I think the scripts you have is not working properly or the website doesn't support all common browsers. To me it looks suspicious. (Screenshot: http://prntscr.com/1xz1bd )

 

I get the same as above. Also Google isn't overly fond of user generated content unless it's well moderated.