Cryptoplay is still small compared with other casinos, but with professionalism and trust from the bottom we can reach the top, the important thing is that all this time offer quality.
Trust is earned over time, not through endless advertisements.
17k registered players is a big number, but the question is how many of them who are actively playing regularly? I'm lurking your live bets tab, there are not many players imho because I can see few different usernames only (around 5 different usernames). Chatroom is also not that crowded as well, only few players who are chatting to each other or share their bets in the chatroom. Of course it is not enough to know the actual activity in your site because you are the one who knows about how many active players you have and how much is wagered in average every single day. By the way I have to agree that trust has nothing to do with advertisement, trust is given by your real players who are playing and expressing their experience in your casino.
Why not give it a time and see how they will do, I mean they've just launches their signature campaign, a good way to promote their sites here. And just like the rest of crypto casinos before, they somewhat started from small number of user based and then grow throughout the years. It's not that suddenly the numbers are massive, this niche is very tough, with a lot of reputable casinos already establishing themselves.
But with proper promotion and marketing and maybe give-aways or competitions, they could end this year with their users growing up and more of them are actually playing in the platform. Again, it's going to be very hard but if they are here to stay then maybe they will also be one of the biggest casinos in the future.