OOO: On the Survey, What's the "Energy Exchange"? [Resolved]

The first survey question asks if you have used the "Energy Exchange." I don't see this specific title used anywhere (and thus answered Not Sure). You can buy CE with real money or trade CE and crowns at the (clearly labeled) "Energy Depot"--is that what you mean?
It also could be interpretted as using Boost (exchanging CE for items) or exchanging CE for anything with another player through trading.
If you only mean trading CE with crowns, and not real money purchasing, you could ask "Have you exchanged Crystal Energy to or for Crowns within the Energy Depot?"
Edit: Question has been changed to refer to spending crowns for energy at the Depot.

http://wiki.spiralknights.com/Energy_Depot
I don't really know what the question means though, since OOO has access to our ce history as to not need to ask such a question.
It's pretty vague.

Here's a screenshot of the question, using another account.
Edit: Removed link.

yeah there's nothing specifically called an "energy exchange" so i just said no and i dont know what it is. It's probably the energy market where you buy CE for cr and vice versa

I don't have a screenshot to back me up but I specifically remember it using the word "Depot" because I don't think I'd ever heard it called that and the word really stuck out at me. In my head it is the "Energy Market".

Tis okay; perhaps they initially asked about using the Depot, but changed it as they wanted to focus on trading Crowns and CE, and not the real money purchases.
but the energy market is clearly labeled as market, too.
If they mean the trade panel, that is clearly labeled as trade. so ???
I *think* I saw it called exchange too, but I'm not 100% sure ( 90% yes)

Aha, question has been changed to refer to the Depot. Also, the I see that Energetic Knight does refer to the Depot as "the Exchange," so there was a reference in game.
Question #1: Have you ever used the Energy Depot?
Whatchu talkin' 'bout willis?
For reference: I took my survey question at about 9pm EST 11/16.