> > Attached is a PDF showing the differences. If you zoom > > in, you can see that the \[lq] in IBM Courier, which is > > bottom-heavy (like the \[lq] in Times), is not the same > > as \[rq] in Adobe Courier, which is top-heavy. > > I get that, but by using \[lq] and \[rq] you end up with a > top-heavy right quote anyway, so how does that make a > difference?
What is important in German and English typography is that the opening and closing quotes exhibit a certain symmetry to each other, specifically a point reflection as in Times and IBM Courier, or a mirror symmetry as in Adobe Courier.