On Sat, 16 Mar 2002, Joe Touch wrote: The main issue here is about the rule for the filter. We all want less spam. The difference is: - to me, spam is defined by content - to you, spam is defined by user and assumes a correlation between user and content I almost agree with your distinction but I want to make one clarification. To me, it's not that spam is defined by user, it's that non-spam is defined by user. What this means from an implementation point of view is that non-spam is almost trivial to configure and then more or less runs itself, or at least distributes the management to the subscribers. Thus the cost-benefit ratio for this particular spam control mechanism is negligible from the point of view of the *volunteer* list host. We have to remember that the bulk of IETF mailing lists are hosted and managed by volunteers. All mechanisms other than correlation by user have a labor intensive component. Such mechanisms are not excluded but they are impractical for volunteers. While I agree that "user ease" is of paramount concern, I do not believe it is a priority concern considering how the IETF as an organization "manages" its mailing lists. Now, if you want to talk about centralizing the management of the IETF lists, then the priority concern issues can be different. Jim