Ok UK SEOs - we had a good rant recently about the .com on UK results issue (that Matt Cutts and the Google team seem to have started tackling).
Now I'd like to set another little teaser. I am sure it will not have escaped your notice that a "results from the UK" query produces a search query in Google that includes (both) the operators:
I am sure that you will have further discovered that if you delete the cr=countryGB operator (so that only the cr=countryUK operator is there) the results are generally (a) cleaner and (b) include fewer non-UK-based sites.
So my question is this: Why do Google use both operators? Surely the actual difference (if any) should simply be Northern Ireland sites?
Based on your responses, I plan to approach Matt with this (as Google are clearly focused on the issue right now so timing is good).
Please let rip and post up your example sites and observations.