I agree the tax discussion is important. Yeah, it's arcane, but so are a lot of other important things. I am not up to snuff on taxes, but I can follow most of it -- especially the main principle of progressive taxation to avoid the consequences of a concentration of wealth. Plutarch said that no republic had ever withstood for long a great gap between rich and poor. And though he didn't have the history we have to go on, I think his statement holds up 2000 years later.
I'll have to find the post first before I know exactly which one it is that I was planning to read of yours on ethics. I just recall reading it through half asleep and thinking, "This is the most interesting thing I've read on ethics in a long time."