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I think something that's quite rough is fine, even a trailing average indicator
basically right now it's displaying the rewards as if SBD = $1, which is bad for onboarding, because the higher SBD should really be reflected as part of the value in the entire ecosystem, just like higher Steem value
If people say that posts are actually worth 5x the advertise amount right now, they're far more likely to onboard, and more users = higher actual value

I do concede there are technical difficulties that I brushed over and I don't understand the dev side, but the pros are potentially very high here so it's worth considering

If you're pulling data from the Coinmarketcap API, I think people would be confused if they keep hitting refresh and see prices go down or up with no apparent change or additional interaction with users. People might also get super disappointed if they expect a large payout and then a week later SBD crashes and they get a fraction of what they were expecting in USD.

Another (albeit trivial) issue - how do you handle which currency to show? Not everyone here is American.

I agree that we can use a rough number. Maybe a weighted average of known exchanges that updates daily. That would give the user a more accurate idea of the value of their wallet while not having it fluctuate too much.

yes, this would be exactly my view

The bittrex price is closest to a real price. Only bittrex and poloniex have significant volume, and the poloniex price can't be trusted because their wallet is broken. You can't buy SBD there and then withdraw them, only trade on the platform as a sort of undated IOU. How long their wallet will be broken nobody really knows but in the past it has been down for a long time, i.e. months.

Yes, thanks for clearing up the details

My guess is the bittrex price is even higher than the coinmarketcap average

Regardless, I think it's a missed opportunity to not accurately advertise our very generous rewards (over 5x what most would assume at a glance) given that that's probably our biggest attraction