Perhaps that poll didn't mention that users could choose to keep the country blank?
In which case what's the point really?
Most new users fill in the bare minimum of information through habit or reflex. Later, when they start asking questions, they need to be reminded that specifying which country they are from would be helpful, adding to the noise in many beginner threads.
If
not specifying your country were made a definite decision, rather than the default, I suspect the number of such exchanges might reduce considerably.
Identifying your country is not usually a privacy concern and frequently offers real advantages for those reading your posts. If you live somewhere you prefer not to reveal you could either pick a nearby country or
choose to leave the field blank.
Whatever the decision, I think it should be made clear to new registrants why stating their country is useful on an international forum such as this.