The way I look at this is that by releasing the locations the government is putting pressure on these businesses to disinfect their buildings. After being cleaned these businesses are probably the safe place to go visit afterwards:

Doctors from the Korean Society for Preventive Medicine and the Korean Society of Epidemiology said Monday in a joint statement that the government’s disclosure of places visited by people later diagnosed with the new coronavirus had “zero effect” on public health, saying it only aroused unnecessary anxiety.
The two groups said members of the public shouldn’t worry about contracting the disease by visiting the establishments or passing by areas where infected patients went – as long as those areas have been disinfected.
“The biggest obstacles for overcoming the new coronavirus crisis are fake news and disinformation, excessive anxiety, groundless ‘solutions’ constantly raised by non-experts, stigma against patients and people who contacted them and a lack of voluntary help from people with symptoms of the virus or those who are subject to epidemiological investigations,” read the joint statement.
“In terms of public health, there’s zero effect in shutting down schools and stores near places infected patients visited,” the statement continued. “Such acts only cause unnecessary social costs.”
Joong Ang Ilbo
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