On Fri, Jun 14, 2013 at 1:45 AM, Jonathan Wilkes <jancsika@yahoo.com> wrote:
They improve readability in situations where a straightforward, structured
patch ends up with a line crossing over and obscuring text.

I'll go out on a limb as someone who rarely posts here. I've been working on a single complex patch, with many abstractions and sub-patches, for a long time now and one of the greatest pleasures of patching in PD for me is taking the time to avoid visual clutter within the constraints of working without right-angles or bezier curves. 

There are basically three types of lines that look any good in PD to me - the horizontal cord, the vertical cord, and one particular diagonal in which the pixels just happen to align in a regular pattern. I would go so far as to say that working with only those three and sufficient white space one can avoid obscuring text in all situations. It takes longer because you have to think about where you place objects as well as what objects you are using, but I personally find I make better patching decisions based solely on the fact that I am forced to think longer about the patching process. 

So long story short, I don't agree that right-angles or beziers are a requirement for clear, structured and readable patches. They may be helpful time-saving tools, but using them would come at a cost for me.