Re: the earlier answer where PolyGeo writes:
To be on-topic I think such questions should always start by saying why a general reference search might not be providing a satisfactory answer for a particular, and thus potentially interesting, surname.
I agree with this. I think another place many of the questions fall down is that the surname origin search does not seem to be part of a workable problem. They fail the criteria in What types of questions should I avoid asking?:
You should only ask practical, answerable questions based on actual problems that you face. Chatty, open-ended questions diminish the usefulness of our site and push other questions off the front page.
Another shortcoming is that the questions lack context, which can make them run afoul of this caution (also from dont-ask):
Your questions should be reasonably scoped. If you can imagine an entire book that answers your question, you’re asking too much.
Maybe my imagination is more robust than other people, but for a common, widely-used surname, there could easily be an entire book on a surname's origin(s) if the author was thorough and cited everything properly.
Ideally, surname origin questions should have some kind of relation to how the information will be used to solve a specific problem in genealogy.