[JustSomeGuy]

If a word user creates a macro, and only runs it on his/her own PC, seems
like Word should be able to 'know' this and allow the macro to run on that PC
without a lot of additional fussing with macro security settings. Seems like
the creator, on his/her own PC, should automatically be a 'trusted publisher'
of his/her own macros.

The "Trusted Publisher" label is mysterious; the average JustSomeGuy doesn't
know what it is, or why he/she can't be 'trusted' automatically.

If you know of a really clear, comprehensive online explanation of the whole
macro security authorization topic (beyond Microsoft's online help, which is
sometimes rather vague) it might be helpful to post it here.