I would like to know what is so bad about MacKeeper. Do we have any hard evidence of its problems? I use MacKeeper but ONLY the virus portion and avoid the other utilities in the app. Yesterday I had a problem which It helped having MacKeeper installed. Without MacKeeper it would have been difficult to diagnose. People have said it will corrupt my system yet it has not in the 2 or so years I have been using it. So please cite some evidence and not just opinions thanks.