Oh, but wait, now when I think of it, is this not the effect the baseline offset should give?
My interpretation is that it moves the baseline of the text down, i.e. the basline that aligns to the basline grid ends up a bit below the basline of the actual text?
No, sorry, I am thinking wrong here... What I describe above is what happends to the headnig, yes. But the question is why it affects also the following paragraph.
But maybe the paragraph spacing is based on the offset baseline? So when you move the baseline the "space" to next paragraph is also moved down.