Stuff that I can understand. Like if I ask a question that really requires a 'yes, it can' or 'no, it can't' answer', one of those two. Not a paragraph of guff. I don't need to know it's an attribute of a field so la-la-la. Come on, you can surely do binary? Yes? No?
Of course, if the bloody API document was well written, I wouldn't need to ask the question in the first place.