I can easily see how in the case of someone being as active as you are, and at the top of the heap, how this pays off for you (and before I posted my comment I almost said that). But I suspect there are many others that spend a fair amount of time that, while enjoyable and with benefit, might not fall into that category.
I'm wondering if you've ever thought about leaving HN and forming your own, um "family" if you get my drift. I'd put some seed funding into that family. You already have the gold medal, why not try to do something new? My guess is that others would follow.
The first is "why buy the cow if the milk is for free"? The second is how I'm reminded of women that never get their long time boyfriend to marry them because there is no line in the sand, no deadline, no imperative to make a decision or do anything.
To wit: "I'm here until Paul Graham offers me...". People need a reason to make a decision and to do something. (Not that you can say "if/then" or anything.)
For all I know of course you have had discussions with Paul or someone else about a YC slot or are totally joking. (I can only speculate and offer thoughts in case anyone is still awake in the thread my thoughts).
I do plenty negotiating and I've never closed a deal w/o having a time limit (in which of course the bluff sometimes goes bust obviously but that's the risk of the game). I never ever leave something open ended unless I don't want someone to make a decision because I am trying to buy some time while waiting for someone else.
My point of course is not that you could ever say "make me YC or..". Just that there is no clear reason for PG to do anything and make a decision.
But to the point at hand: I can easily make a case for my HN comments being more lucrative than any book I could have written. Easily. There is no way a book would have been as valuable as recruiting vector, for instance; I've hired more people from HN than any other source.