Well, I am not sure, it's either a bug or they are trying a scheme/scam. Even if you try to sell SBD on the site, there are no people that would really buy your SBD for 21$ while there are sites where you can get 10+ times cheaper. I heard rumors that the site is pretty buggy and had issues in the past.
Later edit: Register is off for me, I think they don't even accept new users.
Coinmarketcap took off hitbtc from the markets section on SBD for the past 3-4 days, but now they are back. SBD was even at ~70$ on HITBTC yesterday.
HitBTC is well know for closing their wallets for maintenance. Every time they do, the prices of those coins skyrocket. As of a day or two ago, they closed SBD wallets for maintenance. They are becoming quite scammy, if you ask me. I'll never use them.
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Thanks for the answer! It helped me understand,but yes, I am still confused☺
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I am a little bit confuse too, that price it's not right, no sane person will buy SBD for that price. Someone is gaining something from that price.
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