From: daleh@ix.netcom.com (Dale Harrison (AEGIS)) Paco begins by inventing the new [format] of which only Paco knows the internals. Fine. The operator has no idea of how to make sense of this data format. Just because someone in the world has an interpretation for it doesn't mean that I do. No operator of any data service can be expected to know about every data interpretation. The key here is "good faith". An operator can undertake a good faith effort to remain ignorant about content. The argument that "it passed the filter, so it's approved" is bogus. The counter is that "it passed the filter, so I personally have no idea what's inside it." Knowledge here is personal specific knowledge, not an acknowledgement of a possibility. Eric