Here is an excerpt from their policy:
What does this mean for you? Basically, I cannot allow any comments on any posts related to anything I have created for Poptropica. This is for your protection. All online visitors to Poptropica and/or other Family Education Network sites are promised a commitment from them to protect their visitors and keep their online interactions safe and anonymous.
This is a really big issue. The internet is full of wonderful and fun things, but it can also be a source of danger. If you post a comment to my blog, your information is now public. Anyone will be able to follow the link to your profile and access whatever information you have about yourself there. This is something we do not want to encourage.
Please understand this is not anything personal against you. I appreciate how much you enjoy what I do for work. I enjoy what I do for work also! But we have to play it safe.
So as of this post, I will be removing every identifying comment connected to any post I have created containing anything related to Poptropica. I know you'd like to tell me how much you appreciate what we do, but please refrain from posting in my blog or contacting me in any other way about Poptropica. I'm sorry, but I will not respond to any communications related to Poptropica. This is for your safety.