That's not really relevant. If it's interesting and a good discussion results, then it's appropriate for this audience. We discuss archaeology here. I'm sure tax discussion and items about the the financial industry aren't too far afield.
> Kindly avoid posting it to HN every day.
It will be voted up if people think it's worth it, and not voted up or flagged if people think it isn't. We have an accepted mechanism for figuring out what deserves the attention of HN readers. When the site admins think it isn't working to the degree they like for a submission, they make spot adjustments to that submission.
Calling out Levine as not being a good source is fine though, as long as you back it up.
Based on the title, I was expecting a single, unitary article that was about hedge fund size and tax arbitrage. It took a while for me to realize this was not the case.
> On-Topic: Anything that good hackers would find interesting. That includes more than hacking and startups. If you had to reduce it to a sentence, the answer might be: anything that gratifies one's intellectual curiosity.
I don't mind reading about non tech things. Rambling musings on the other hand don't really do it for me.
Kindly avoid posting it to HN every day. Post the articles Levine links to instead, if you must.