I think he cares about what is true. He has no truck with those who think that in some sense everybody's opinions are right in their own way. His science books (Selfish Gene, Blind Watchmaker, Unweaving the Rainbow, Ancestors Tale etc) are as good as it gets. He admited in his debate with John Lennox that his interest was not in fact with biology but with discovering the answers to the big questions. Darwin removed the necessity of invoking the supernatural to explain the world and it has been his passion ever since to share its simplicity and power. He was perfectly suited to his role as professor for the public understanding of science.
When creationists distort and lie about the facts of science he reacts. When children have their enquiring minds polluted with religious superstition he thinks it is tantamount to child abuse - I happen to agree.
The RDF (Richard Dawkins Foundation) is primarily for public education. The forum has been open access and the quality of what is posted there is varied. Some of it is excellent some of it is drivel. Dawkins has taken the decision that in its present form it does not best fulfill the purpose of the website. New threads will have to be approved when it goes back online and there will be some other restrictions.
This forum is for ex-jws to discuss things that interest us, some of it would be very educational for outsiders or active jws some of it would be very misleading. If the purpose of the site was education this forum would not serve that purpose best in its current form. If the format suddenly changed lots of us would understandably be pi$$ed.
Most of those who are angry at Dawkins have already moved to another forum where they are free to post good bad and indifferent stuff without restriction. RDF will be a better place for the change in the long run.