Not sure how HN has limited bandwidth. It would seemingly be easy to simply ignore Bitcoin discussions if you don't care for the topic. I avoid discussions of Ruby on Rails but do not believe they should be suppressed.
This means accepting that certain topics are not a good fit here. Do we really need to re-litigate "what about the jobs?" anytime an AI discussion comes up? Or "what about Trump?" every time Twitter comes up?
This story about the inexorable scope creep of surveillance technology is far too important to ban discussing simply because some users will be vitriolic.
Surveillance and the technology that enables it will be the defining issue of the next decade.