I do not see any big problems with registration if they do not ask much of your personal information. You can use any random or a no use email to register and get access to what they offer if you really need it.
Think about it, even the bitcointalk forum requires that you register to enjoy the main benefits of the forum, else you will be in read-only mode.
I like the website because they recognise that there is gambling problem and they want to solve it. That is a good one...
There are no problems with registration. But i don`t want to register. At least i don`t want to leave any data for unknown site. I get enough spam letters yet to add some more. And without registration i can`t see anything interesting except several videos. Everybody can choose himself to register and test site, or just leave it. The OP asked feedback - he got it.
I think the data they get from the registration is the only thing that they can get from providing free access or free guide on how to quit gambling. Most of us will put dummy details into the registration form to achieve anonymity and I don't see a problem with that but I think the developers are thinking to use the data to improve their contents and monitor the flow of users in their application. The website has a good intention and I think that a few minutes and false information is enough for us to get contents on how to quit gambling.
If you are providing a dummy personal details, one thing is certain, and that is the fact that the email address you provide must be a valid one, as you will have to verify the email before your registration can be considered as valid.
And based on what I think, it's the email address that the site is after, since they will never ask you to kyc or anything like that, the email address is what they need.
So, if at all you are signing up, you don't have much a choice but to provide a valid email, since that is also the only way you can receive contents they send out to their users to help them gamble, you either do this or don't register at all.
And besides, what is the essence of using or registering on the site if you are not addicted to gambling? I personal believe that gamblers who are indeed addicted will not give registration on the site a second thought, as long as its solution that will help them come out from their addiction they are after.