There is plenty of room for subjectivity when we are talking about the role aggregators play online. If Reddit deleted all of the content that was more than 24 hours old, the front page would look the same. Why, because people upvote the same shit without regards for the organization of past content. You can say that the fundamental problem that aggregators face is organization of content, the act of clicking on links doesn't require any organization. You can say that aggregators are all about organizing interesting content, but that doesn't make me "Unavoidably, wholly and fundamentally incorrect."
If I misrepresented your views on hashtags fine, but I don't think that I misrepresented things so poorly that you should be so offended. If I was wrong, then by all means I recant my statement, but your profile clearly shows that you prefer following tags over following people. Unless my eyes betrayed me, then I was not wrong about your preference, even if you didn't say it above.
As far as I can tell (and please correct me if I am wrong, or simple offend you) but your arguments have nothing to do with following people. A tag based organization can be implemented in parallel with the current organizational paradigm without interfering with a tag-based system. From the backend perspective it matters, but to the user it doesn't make one difference. One can exist without killing other. People can use hubski in two different ways.
The fundamental reason that everybody hears "make if different" when you say "make it better" is because you use hubski in a different way than most people do. By saying that the current organization is wrong, you are saying that it should be different. Doesn't mean that your method won't be better, but it will be different.