A few questions:

Am I correct in saying the notes you talk about on the Tor site are not blinded bearer certificates? Rather, they function similarly to ChipMixer chips, in that I can combine or split them and redeem them later, but they are not blinded to you?

Once blinded bearer certificates are operational, how does the end user protect against your service/website being seized/shutdown? How could they redeem their certificates in such a case? How would they be able contact the threshold number of signers in order to redeem their certificate and receive the corresponding bitcoin from your multi-sig wallet?