Not setting Reply-To: affects me this way ...

I just realized another annoyance I'm encountering because of the lack of Reply-To---I now have to search for mail I've sent. I use elm. I've been using elm since 1989 and I have no plans to change that any time soon (I've tried pine and I don't care for it). One setting I have enabled on elm is saving all email I send out. Such email is stored based upon the email address being sent to. Since a group reply places the list address in the Cc: line, the email is still stored, but not under the classiccmp folder (file actually), but a different folder. So now I have to search (grep) through 231 (at of right now) folders for messages I send to classiccmp. That also means when I want to save a particular message it won't be stuffed under the classiccmp folder by default (I'm used to hitting 's-enter' and now that does The Wrong Thing). But majordomo (or any mailing list software) is still RFC-822 compliant even if it does set the Reply-To: field and it seems to me that the annoyance having to do a 'group' reply outweighs the benefit of `reply' going to the list. So, what exactly, is the problem (really, no hypothetical pathological cases here) of setting the Reply-To: field? -spc (Yes, I should clean out my folders ... )