It was almost a shock to see some of the registration flows for a few large operators when I did my UX-review on the registration and 1st deposit flows for the newly regulated Swedish market.
I thought that the operators would have putten more effort into the registration process and use available technologies as BankID more. Instead players had to fill out long painful forms. This probably scared away some players, especially casual ones who just want to try to play.
More findings are available in my UX-review, available for purchase, Get in touch for a discount :)