QUOTE(michaelanglo @ May 23 2009, 10:14 AM)

Back in December 2008 I posted trackers in the newsgroup for an example pair in one of which the "From:" was not munged (which is what commonly happens) and in the other the munging occured. They were otherwise very similar and no one had any suggestions as to why.
Yes, "Return-Path:" can be munged and is, even in a case where "From:" is not.
Thanks michaelanglo, that must be part of what I was half-remembering. So the request would be for
consistent munging in headers (address fields and any others, including "Subject:" specifically) and munging in body (HTML as well as text parts) when "Preferences->Reporting preferences->spam Munging" is set to "Obscure identifying information" and where 'identifying information' is the e-mail address or the left-hand (user-name) part of the address (or the reversed form of either/both), when alone or included in other strings. Phew.
Doesn't hurt to ask (and this is certainly the right forum to do that) but I suggest any reporter seriously concerned about munging NOT hold their breath waiting ... and, even if munging is upgraded, I must point out what has been said many times before - if "they" want to identify "your" spam by its content then there are potentially an almost infinite number of (other) opportunities to make that content unique and therefore "identifiable". Overcoming such would be an "arms race" SC could not possibly win although "they" would probably like very much for SC to try. "Their" fundamental problem in all of this is to get their hands on the reports to ISPs, so a huge part of it would be all bluff (which would be much more in keeping with the presumed typical spammer "business plan") since SC tries quite hard to ensure that doesn't happen. Just my opinion, but one I think shared by others.
NOT to detract from the suggestion, which has been put seriously, goes in part to the consistency of 'advertized function' and should be seriously considered accordingly - just saying anyone really concerned, with
reason, about the spammer identifying their address and (somehow) accessing reports to ISPs to do so should probably upgrade their filtering/refrain from sending such reports/change to 'mole' status ... whatever, munging might be a thin defense in those few cases, dealing with atypical spammers - but I still think mostly they are typical spammers just puffing themselves up. Or, in the case of those 'only' consistently forging the reporter's own address for "From:" etc., cluelessly trying to slip through on whitelists.