UUMom, I totally get what you mean about the parents who say they are AP but spank. The difference is that no one seems to really know what the definition of unschooling is, :LOL At least with AP there is a set definition (even if no one wants to admit it - he didn't invent the concept, but Sears did coin the term and what he thinks it means). I've only read a few Holt books but, even though he coined the term unschooling, I haven't seen a set definition by him. More of a long, flowing description of unschooling in action. Very unschooling actually, :LOL But of course, that lends itself to interpretation.
As an aside, I remember reading one of the Holt books and being shocked at his description of one of the unschoolers using Calvert curriculum. My first thought was that pretty much everyone on unschooling.com would jump up and down and say that wasn't unschooling, yet there it was, in a book by HOLT, :LOL If I remember correctly, the kid was in a state that required a curriculum to homeschool and his parents left it up to him to work through it when he felt like it. Anyone else remember that? It was either How Kids Fail or the other How Kids (succeed?). I can never remember which one I read :LOL But then, I also read Teach Your Own so maybe it was that one.
For me, like someone else said, unschooling is about choice. I do not tell my dd she has to do math, or pressure her into vocabulary, but I have no problem *asking* her if she's interested in something. Humans are meant to communicate and share ideas

I think it's very un-natural to *not* want to share things with someone you think would be interested. The very fine line in my head is that if she says no, I say ok and drop it, and that's what makes me an unschooler. I mean, even my radical unschooling friend asked her son if he was interested in the home ec curriculum our school at home friend brought to a playdate. Now, she knew he'd say no (and he did), but she saw him looking over her shoulder so she asked if he was interested. That doesn't mean she's suddenly not an unschooler right?
Follow Mothering