Name and shame
Definition 1 of 1
Pro Tip 1/3Social Pressure
Name and shame exploits social pressure to discourage bad behavior by highlighting it. 
The campaign will name and shame companies ignoring environmental laws.
Pro Tip 2/3Public Exposure
The phrase suggests exposing wrongdoings publicly, not just telling a few people. 
Activists used social media to name and shame the violators.
Pro Tip 3/3Negative Connotation
Using 'name and shame' implies a negative judgment and disapproval of actions. 
Local residents were named and shamed for littering in the park.