Speaking of privacy, there's a cost to fame and notoriety in societies in which these systems exist. imho markets like this, taken to their extremes, incentivize small local communities, local governance, and very effective communication across boundaries between communities, since they have an event horizon that means individuals needn't be known outside -- where you never want to be known too much as an individual outside your circle of community.
I'm not sure that sounds like such a bad world tbh. I just don't like how it gets there