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@sistem and @c0ke - between my rusty French, and Google Translate, I've come up with this (I believe) passable translation -

If you use the 100% power up to Steem as your reward choice when making a post, currently the blockchain converstion is 1 SBD = $1.

However, if you choose the 50/50 option, you can exchange your 50% SBD for the going rate, which as of January 2018, 1 SBD is approximately $8.

Essentially, you lose rewards by using the 100% Steam power option.

A word to the wise. (I think that's how the phrase translates)

Oh, and I agree. Thanks for the tip, @Roxane!😄

So in other words we shouldn't power up at this point...

I actually just converted some SBD to power up. It's the automatic 100% power up versus the 50/50 that isn't a great deal at the moment.

At least that's my understanding of it.

That is exactly right @traciyork :-)

Actually Steem is not fetching the actual SBD price when rewards in 50%/50%... it is using 1 SBD = 1 USD which is indeed a great deal.