Re  Occam, I think you're making a mistake in assuming that the lead is not at issue in the mediation.  Many of the issues involved with editing the lead are exactly the issues we went to mediation to address.  Any suggestion to restore old versions, give differing weight to ideas, or change the focus of the article are necessarily considering changes to the lead.  This would be in direct violation to the mediation.  Also, the mediation isn't closed or even paused.  Reubuzz is just reading.