oh, ok; most interesting. that means it's a solution then, well, aside from things like (a) privacy concerns and the associated (b) ability for them to arbitrar

oh, ok; most interesting. that means it's a solution then, well, aside from things like (a) privacy concerns and the associated (b) ability for them to arbitrarily censor, delay, hold etc transactions which we have certainly see e.g. paypal do.