How long you've been waiting for your ticket to be read by them? I thought that even with the absence of lightlord, everything is running smoothly for this casino and for the other one. If it's already too long that you've been waiting for the support ticket to them then there's a tendency that the others that have sent it to them are pending as well. It's almost closing in for a month since he was online. As your concern is about the security of your account, they should have responded to you already.
I also have not heard any delay in ticket handling or issues at bitvest recently. This may be only one case or he has just randomly written feedback about bitvest (as he did not provided any details).
By the way, how many people are currently using bitvest? Are any forum users here currently playing at bitvest?
If you go and check the website, it will show how many users are online as of the moment and how many of them are active. I don't know how they're classifying those online and active, maybe those that are online are just idle and not playing like they're just parked on bitvest.
I think there are still quite plenty of players from the forum that are still using them.