Very nice! Looks like the salt thread will be getting some revival.
I would suggest adding http://フラワーナイトガール.攻略wiki.com/index.p...9B%B3%E9%91%91 to the Japanese wiki. It's just 1 page away from the main page you listed, but not everyone can read. The third spoiler button (the + sign) details every event thus far, and the event girl & new gacha girls that were included along with them. Should be useful for waifu shopping flower-gem-hoard planning purposes.
Not sure if this is relevant, but what about the general chat thread? http://harem-battle.club/flower-knig...fkg-world.html
Might help to reduce some derailing in the other threads.