This guy's gay gene theory is not being taken as seriously as it had been so he has to come up with something new and shocking to get his name back in the news.
Letters after one's name no longer has the credibility associated with it as it once had, and that's probably a good thing.
This is scientific research, it's not written in stone. The guy publishes a paper about god genes or gay genes and some other guy reads the paper and does his own research. He finds it's a gene combined with specific neural pathways and he writes a paper. Some other guy reads the paper and finds, yeah, its a gene with specific neural pathways and certain kinds of conditioning, and he writes a paper...that's the way science progresses.