Alter your approach in the conference. WELL administration does not, and will not, impose explicit rules on hosts governing such deletions. To do that, we think, would undermine the freedom of hosts to exercise creativity in handling their conferences. Hosts are also empowered, under duress, to ban a nuisance member from their conferences. Because hosts aren't always present online, or aware of all the details of a particular conflict, they cannot be held responsible for the content of comments that may appear in their conferences.
Responsibility rests with the writer.
Manuals and online Members Guides over the years. It has endured as excellent advice. Keep in mind when responding to a topic or entering a new one that the other users also have feelings. Please avoid trampling on them. Also, remember that comments entered in hasty reaction to someone else's posting will be available to be read long after you have entered them.