I think the argument I summarized in https://news.ycombinator.com/item?id=11171344 https://news.ycombinator.com/item?id=11171344 is reasonable. In a nutshell, t

I think the argument I summarized in https://news.ycombinator.com/item?id=11171344 https://news.ycombinator.com/item?id=11171344 is reasonable. In a nutshell, they say that we should apply the third party doctrine as if we're in a world without third parties. So in the tor case, if they would need to manually transfer information, then the identity of both people would be known. The basic intuition is that technology shouldn't allow more hiding. (This is a simplification, read the sources to understand the point being made.)