[turc1656]

I get what they're saying. Walmart is literally known by every single person in the country (and outside the country as well). It's much less effective to bitch about getting ripped off by the local DDS and have people see about it and also care about it. If a bunch of people went online and were talking about getting ripped off by Walmart, it could very easily get picked up by the media if the claims were legit and then could affect the stock price.

I think people are also much more likely to talk to one another about the "shitty new Walmart healthcare service" because they know everyone knows Walmart and might use it. It's far less likely that you warn people about one single DDS office in your town unless perhaps that specific service provider came up in conversation.