some companies dont want negative stuff from people on their websites...they may rightly or wrongly consider the people posting to be haters, and therefore not want that style of comment left for others to see....either way, if they own n control the website, its their call...
personally, i dont like seeing negative stuff splashed everywhere all the time on companies pages etc....its just soo much more enjoyable seeing the positive stuff, otherwise you wonder each time u log into certain sites, if u have to look thru 100 negative comments to see a positive one that may be educational, cause usually the neg ones are not...thats been my experience....each to their own....but negativity on a business site or a site to attrract income is best off deleting all negative stuff. I certainly would if i owned the site. People can still email in their negative feedback if they want to, leaving the webpage positive only....