Edit: Should say for the record the Harvard program is not a scam, highly reputable (Harvard), classes / professors are the best I've ever encountered, students range from duds to awe inspiring as most places do.
I am in the graduate program and agree that it has been excellent so far (about halfway done). In my most recent course I ended up presenting my final project at a well-known conference and have been working with the professor on another research project over the summer. Despite being in my mid-40s I am now considering a doctoral degree.
I think it shows that you are not a "lesser" student that snuck in the back door, you are a Harvard student with the same potential and ability to achieve if you work hard and want to make the most of the experience.