The wiki didn't say anything about the Soul Points for exchange this event, and doesn't say about the stock expanding at a higher price. Just bought 10 for 10 epitaphs, and now it's sold for 15 epitaphs and 5 gears. I'm going to keep getting them, though this obviously puts the SSR out of my reach.

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Quote Originally Posted by Unregistered View Post
The poster you are replying to does not appreciate a general consensus. He's probably going to start a thread polling users on what they call the chests.

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It's less confusing for English sites to refer to it as 'platinum' since it looks like platinum. The actual term for platinum would be 'hakkin'/白金, ie the kanji for 'white' and 'gold'. 虹箱, as used on the wiki, would be 'niji'/'rainbow' and 'hako'/'box or chest'.
If English sites were to refer to these chests as rainbow, we the players would stare at the screen and remark about how they don't freaking look like rainbow.
If you insist that it looks more platinum than rainbow, you need to do an image search for platinum.