I wonder why he pours so much of his free time obsessively into this subject, that's clearly not his matter of expertise constantly.
He wrote 4 times about this in 4 years. Does he have so little free time that you would count that as writing obsessively?
Now, let's compare him to those on econtwitter. Do they write more or less about identity issues? If he is obsessively writing about this, what would you say about those on econtwitter?
About NYT journalists?