Some photos taken in Vanuatu have already been labelled a violation of Facebook's nudity and sexual activity standards, and he said his account had been blocked for weeks as a result.
But the pictures are not lewd or explicit.
They depict cultural ceremonies where women are dressed in grass skirts and not much else, or photos from Vanuatu's Indigenous villages where men wear nambas or penis sheaths.
"It was with a pig-killing ceremony, where they were dancing and the chief was dancing," Mr Benko told the ABC's Pacific Beat, recalling one of the blocked images.
