I've been wondering that recently for several reasons. The first is that I've had several friends and colleagues ask to meet up for a meal or coffee, or via phone calls and emails, to "pick my brain" about publishing. While I can imagine nothing more painful-sounding than having my brain picked, I do offer my advice, but no brain chunks.
But I'm not sure if my advice is worthy. I plow through the chores of doing it all myself, and take some small comfort when colleagues who have the advantage of prestigious publishers and agents regale me with their woes (mostly to do with a lack of control over their work), the position of being a "success" still befuddles me somewhat.