Wait, so if we spin up a cashu mint on lnbits on boltz/liquid, we get private ecash with private settlements. Sounds great! 
Just to verify, are boltz swaps atomic? Is there another risk if the boltz service goes rogue or just down, or is service unavailability the only risk?  

 No one is maintaining the ecash extension. Although why bother h with the ecash bit 🤷🏼
On the swaps liquid is a blockchain, but yeah swaps are an excellent obfuscation tool.