send-email sending shallow threads by default

On Sun, Feb 15, 2009 at 03:53:50PM -0800, david@lang.hm wrote:

quoted

* git-send-email won't make deep threads by default

 Many people said that by default when sending more than 2 patches the
 threading git-send-email makes by default is hard to read, and they
 prefer the default be one cover letter and each patch as a direct
 follow-up to the cover letter.

 http://article.gmane.org/gmane.comp.version-control.git/109790

I have mixed feelings about this one, if some messages get delayed in  
transit the deep threads still keeps them in order, while the 2-layer  
option doesn't.

Is that the case? mutt at least orders by thread, but by rfc822 date
within a single level of thread. So as long as the date fields (set by
the sender) are correct, it looks right no matter what order they arrive
in.

Are there common readers that thread but do not order by date?

-Peff