I *did* use coinchat a few months ago and I was banned by "admin".  We exchanged some emails in which I asked him what I had done to be banned and I didn't ever get a detailed response.  He said I owed him 0.2BTC if I wanted to be reinstated on coinchat.  I asked him several times where he came up with that number and what I had done wrong.  Each time, however, he just replied tersely about some sort of fraud and paying him back.

The best guess I have at what he was angry about is that I was experimenting with robots on his site using the api the he published (and I as I understood it) he encouraged us to use.  I enjoyed coinchat and I learned a lot about node.js while I was experimenting there.  I was sad to get kicked off because I had a lot of fun chatting there and gambling on the various robots.   What I can't understand is how a site that gives money for chatting is going to cry 'fraud'  when I took money for chatting.  I mean, the site gave me money and I cashed it out using the site's system.  How on earth is that fraudulent?  Another thing I can't understand is how the 0.2 he asked me for (and I'm still not sure where he got that number) has now inflated to 1.5BTC.