Option to disable own post notification in "mailing list mode"

[Dan_G (Daniel Gagnon)]

@lake54

This emulates traditional mailing list behaviour, but many users are familiar with some mail client’s behaviour that “hides” these emails automatically.

You definitely don’t want to deal with the tons of messages from people reposting because they think their last mail went to /dev/null.

It should either be optional or people can use client-side filters.