The comment was deleted because the mod jumped to the conclusion that it was purported to criticize or humiliate the user.
The actual intention was straightforwardly direct and not subtle at all: to find out how it happens that users like that omit the country/jurisdiction. What is their way of thinking? I was genuinely curious.
Whereas I agree that the angle of view taken by the mod is not totally impossible (which was exactly why I took the screenshot as I thought the comment could end up deleted by this particular mod), I find it totally unacceptable that one has to dress their perfectly neutral comments with mawkish pleasantries just to avoid being perceived as unfriendly. The expectation is that people (both new users and mods) apply critical thinking and don't assume negativity without evidence.