A lot of times if your tone is unintentionally off you'll get a few initial downvotes but other people will see your intentions and bring you up out of the grey, which is what happened here. You're continuing to get downvoted on other comments because they're contributing to a discussion nobody wants to see, the discussion about the discussion. It's best to just stick to the topic, and treat downvotes and the score in general as the ultimately meaningless internet points that they are. HN prizes the generally high signal-to-noise ratio of the comments.

Also Bitcoin is a political topic, one that will draw lots of people who will downvote you just because they don't agree with you.