Disclosure of possible conflicts of interest is highly commendable, and one should tend towards more rather than less disclosure.
However ODT Political Editor Dene Mackenzie may be taking it a step too far in this story about ACT and Rodney Hide:
Dene Mackenzie is political editor of the Otago Daily Times.
He attended Rangiora Primary School at the same time as Mr Hide but they were three years apart.
I would like to disclose that a NZ Herald journalist was a teacher at Island Bay Primary School, where I attended from ages 5 to 10.