Matt and Johan,
I completely agree that user restrictions are an effective way to block a user's ability to send to a DL. That technique should also be used as a best practice to prevent accidental storms to large DLs, etc. That being said, the point of the post is more to show that there are some additional options available post-storm, that could assist with helping mitigate a future storm. Moreover, once Part II is posted (presumably this week), you can take what has been layed out here and apply it to other menu options and short-cuts. The second post will cover how the Command ID, and shortcut modifiers can be ascertained. This is actually a more common request than you might immediately imagine.
Again take from the excerpt above:
"Upper management has made a decision to not implement bulk message restrictions to the Distribution List itself"
E.