Kind of sad not to see betcoin in the list. I have been experience with them and so far the respond to service is quite fast, usually within a day. I love how they incorporate etherum into the gambling sites and there is ton of different tables you can play.
How he got this information, I don't know because last month I saw Betcoin in the 3rd position but here he is not mentioned.
The poll list is incomplete. There are a lot of good gambling sites which are missed. You list around one dozens of sites and there are many more.
To be more meaningful, the survey should include more page. Otherwise it does not make sense from my point of view to participate.
Yes the poll is incomplete, he should survey in depth and collect more information about other websites. That is why I have not participated.