This is interesting in that it highlights a number of problems that every peer-to-peer network that wishes to use something like Tor for privacy needs to take i

This is interesting in that it highlights a number of problems that every peer-to-peer network that wishes to use something like Tor for privacy needs to take into account. I also wasn't aware that Tor hidden services can be "blackholed" so easily (it sounds like this is probably well known to regular Tor users, though).