Not to dismiss the whole point of this thread, but it does my heart good to see it.
With the "World According To Media" falling down around our heads, we still indulge in the luxury of being concerned over the locations of mailboxes.
We have it far better than people are 1) Aware Of. 2) Believe. 3) Are willing to accept without guilt.
And, for the record, I have a community box in my front yard that the 12 neighbors all use. Waste of a good parking space for me, but it's more secure than the corner box, I can Get and Receive packages, and my letters are secure.
That's the trend, Local Corner Boxes are not suitable for the current climate we live in. (No, not because they create global warming, the Security Climate

)