I flagged the following comment as rude, and the flag got declined. Wasn't this comment implicitly calling the OP "smart-ass" rude?
One thing I found is that playing smart-ass with USCIS is just asking for trouble.
I declined the flag. I read the comment and decided that while it pushes the limits of be nice that it provides enough value that I decided to keep it. As I think you know, there is a fine line between censoring comments via deletion and maintaining a welcoming community.
In retrospect, at a minimum, instead of declining the flag, I should have marked the flag as helpful (even while keeping the comment). In reviewing the comment, I have now edited the useful information (in a nicer format) into the answer.