Not I. Maybe I'm particularly dim-witted, but it took me months to grasp even the basics on here. (Not that I'm an expert now.) And I can tell you from my experience at work that, when you're dealing with a very large knowledge base, most of which is entirely outside people's experience when they first start in on it, that it doesn't matter how good the documentation is: people are only going to learn things (like how to search categories, or even how to post a question in G2G at all, let alone how to word it in such a way that others can figure out what you don't know) one at a time, and usually by making mistakes. In our case, that means that any occupation category that we delete as a duplicate will be re-created eventually. (And, if it gets deleted again, it will eventually be re-created again, too.)
Personally, I don't see the point in fussing over stuff like that. If one person described himself on his records as a "Lumberjack", and another described himself as a "Logger", I really don't see the point in choosing one term over another and trying to impose that choice on people who died before I was born. The same thing goes for domestics, domestic servants, or any other variation on the term. In my opinion, people can describe themselves in whatever terms make sense to them, and our job is to record that data, not to edit it.