I was president of our 166 home HOA for a number of years and have found that people will go to all sorts of means to avoid knocking on the door (ringing the bell) and speaking face-to-face with their neighbor. People had no problem calling me at 10:00PM, knocking on my door or even sending the sheriff with service papers. My advice to the complainant was to go introduce yourself and speak the concern.
I doubt that publishing a notice in Le News will have a salutary effect on promoting neighborly communication.