it's a "known issue" maybe it should be mentioned in the documents with more clarity. it seems the author of this post stumbled over what is well known to many people and then went on a diatribe. looks like he hit a nerve so maybe it's really an issue with documentation. on the other hand people should learn about how to think via threat models. not sure if the tor project should be expected to cover every hypothetical scenario, and if they did would people study it?