Personal attacks on individuals will not be tolerated. Cross-posting is not allowed. Do not send messages to the list and to other lists or to groups of addresses which include non-members simultaneously. Send your message to the list as a separate email to the list only. The only types of messages that should be forwarded to the list are ones related to marketing opportunities.
Some people have to pay for incoming mail based on the size and amount of that mail.
Please remember this when you reply to a message. Stop first and consider whether your response is really of interest to the whole group, or should be privately addressed to the author of the message. It is often necessary to quote PART of a posting in order to put your reply into context. The usual rule is that you should never quote more than your reply, but it depends on circumstances. Over-quoting of previous messages is especially annoying to digest subscribers.