The "no photos" thing was the rule at the largest bonsai exhibition in Japan--Tokufu. That policy changed in 2016But what's the reason for the reason? So far no one has offered a guess.
The 90th Kokufu Bonsai Exhibition is being held in two parts again this year in order to display more traditional Japanese bonsai to the world. Part 1 was held on February 5-8, 2016 and Part 2 on F…
This event is the property of Bill Valavanis. The venue in which they are displayed is under his control. He puts together an album of the trees where the photos are professionally done. Among the other reasons is the one aimed at thefts. Thievery at area bonsai shows isn't unheard of. Photos appearing online can show off trees that can be targeted. That has happened in the past if I'm not mistaken at one shows load out...
Many museums have a "no photo" policy as well. Here's an explainer:
It’s easier than ever to visually record our lives thanks to the smartphone and now Snapchat glasses, but many museums and other places are fighting a losing and misguided battle against the trend.