Interesting post. Could one summarize your point by saying the author appears to have replaced one destructive passion with another?
This pattern, going from one extreme to another, happens often in early recovery from any emotional/mental disorder or addiction. It doesn't mean that he will necessarily change his beliefs again in the future, it just means that emotional balance will stabilize and he may not have the same passion to tell everyone about his personal life that he apparently does now.
Yes.