PM Message Rules - Members can avoid Admin PMs & Warning PMs

[xrunner]

We just discovered that a member can set up a rule in their PM area which can auto-delete all PMs from Admins, Global Mods, or any other membergroup that exists. This seems strange. How can we make it so members cannot set up a rule that deletes Admin, or Global Mod, or System Warning messages from the moderation center?

Surely this is an oversight in SMF 2.0 RC4. No member should be able to set up a rule to auto-delete these staff messages. How can we disable groups from appearing in the member's PM rule configuration area, or keep them from setting up a rule for each Admin or Global Mod to delete their PMs? We would like them to be able to disable PMs from members who are harassing them, but not PMs from Admins!

[xrunner]

Doesn't anyone see this as a bad oversight? How should a member be able to create a rule blocking Administrator's, Global Mod, and System PMs from the warning system; but that's just exactly what they can do with the PM rule capability! This can't be what the designers wanted (can it?)

[Kindred]

Actually,  as already discussed in the "bugs" board, this is not necessarily an oversight...   it's just your opinion on how PMs from admins are treated specially which apparently differs from others.

(i.e. there is no way to force a user to read an email...   and the user can ignore a admin in posts.... why should PMs be different.)

Anyway... it may eventually be changed, but it's not, technically a bug.