On Jul 9, 2013, at 8:19 PM, Barry Warsaw barry@list.org wrote:

On Jul 06, 2013, at 11:02 PM, Murray S. Kucherawy wrote:

...

(a) the second bullet above is a significant departure from current use (as I understand it), and fails the test of least surprise if we were going to suddenly see that MM3 does things quite differently than previous versions or, indeed, other packages; and

Mailman has support for anonymous lists, which can rewrite the From header to substitute the mailing list's posting address for the original author's address. I frankly don't know how much that feature is used in MM2.1, if at all.

This code was useful to do the patch for MM2.1. I too doubt it is much in use, after all we gave away our privacy long time ago on all the social networks and cloud services... but I guess it answered a need otherwise it would not have been there.