I think I was just reading the thread where Taco tagged "@nonpreasentadmin (sic)", and I was about to tell her she could tag me, when you tagged me, and I came over here.
I don't know anything about coding, so I'm the wrong person to ask if it would be easy.
I like the idea of a tag that alerts all mods, because I notice a lot of the time people do only tag one or two of us, and it often isn't the ones who are most active. Also, there's a lot of misspelling.
I don't know how it would work, though, if one wasn't a particularly active mod and showed up to find several hundred "tagged" notifications.