Proto: dating standards
Amend Rule 478 (Fora) by replacing: performed at the time date-stamped on that message with: performed at the earliest credible time date-stamped on that message ["earliest" because that's closest to hitting the send key, "credible" to make it clear that it's a matter of evidence not logic. In practice, this means go with the Date: field unless there's evidence that it's not credible in some way, in which case go with the next earliest - likely the first forum stamp].
