I would hope everyone does, and the list would discourage people from ever buying from the companies.
I suppose if there are no links, then there would be no worries about somehow increasing search rankings for these companies.
I just wonder about snippets of the list appearing in search results, and that sort of thing. For example if someone does a Google search on 'longecity' and 'weight loss' (I often use Google to search for forum posts) would you be more likely to get ads on the Google results page for one of the offending companies for a weight loss supplement if the company's name has been indexed previously by Google as being on longecity (though not necessarily in the context of the 'weight loss' keyword; obviously the list would not have anything but the company name)? A web marketing expert might know.
Edited by lemonhead, 02 April 2014 - 02:35 PM.