A neighborhood I lived in had a virulent social media & flyers campaign against a planned "24/7 commercial facility" (the ads never said what it was) that would cause gridlock, lower property prices and generally bring on the Apocalypse.

Turns out said facility was a small privately run aged-care home (the horror!), and the campaign was largely bankrolled by some local developers who would much have preferred to turn the waterfront lot in question into condos.