I mean bitcoin stories are not like constantly seeing the latest bimbo in the regular news right?
Personally I upvote (some) bitcoin stories because I think it's something new and innovative and shows hackers being creative in engineering their own world.
Then again, adding tags to HN would be a wonderful way to allow everyone to personalize their filtering if desired and an easy way to search too. For those that do not want tags at all, a simple checkbox in profile could hide all tag interfaces, or just use a CSS class that is easily hidden.