>a) I suspect that *most* would keep a private chastizing from a SysOp as private. I have, even when I thought the chastizing was *not* merited.

AFAIK, any private messages sent by SysOps have always remained confidential among the SysOps. I know I have never violated that rule. If the recipient chooses to make such a notice public, they are free to do so, IMO.