Regarding the hanging paragraphs: In P1135 I was careful to word all the hanging paragraphs so that they are very general explanatory text. They don't contain any definitions or normative requirements that might be referenced from anywhere else in the standard. If I understand the hanging paragraph problem (which I'm not sure I do), this is the kind of text that could be left as a hanging paragraph. (The italicized "latch" at the beginning of [thread.latch] should not be italicized. It is not meant to be a definition that is referenced from anywhere else. It is not italicized in P1135.)

If there is a strong desire to get rid of all hanging paragraphs, the text in [thread.sema], [thread.latch], and [thread.barrier] could easily be put in a new "In general" subsection, as I see in some other places. That could also be done with the hanging paragraph in [thread.coord], but I would almost prefer to remove that text rather than make it a subclause.