I hate this forum I just wrotte a full answer and couldn't place the post.
There are two Russian forums, in one you have to pay to enter and in the other you have to activate Javascrypt... I haven't tried any.
I only use Omni at the moment:
http://onnii6niq53gv3rvjpi7z5axkasurk2x5w5lwliep4qyeb2azagxn4qd.onion/index.php
People say that cryptbb is compromised, one of the owners has left the forum or leaked vendors
Session in case you feel like chatting:
05df2baa8ce5312c694f05ccd6ce9701d8bc17e658823bce1e00314f97420be20b
pretty wayfu btw