so we can not use chipmixer now?
If private keys were not destroyed as advertised, there's no reason why sessions were destroyed as advertised either in my opinion.
I'm not programmer but if all private keys were derived from the same seed associated with the node, is it simple to delete single private key from the node?
I think there's a chance that all transaction data could have been deleted from local database associated with the website but not privkeys from the node due to some sort of complexity.
IMO. maybe 20% chance for this. Assume the worst.
I believe that transaction data is not of the hugest importance as this can all be seen on-chain already. What is most concerning is what resides in the database for sessions, which I assume would include the deposit information, the chips distributed, timestamps and the usage information. All of which would reverse all privacy that the user assumed they were gaining when they used the service.