Paragon's planned pumped on Yobit last week drove lot of people crazy. I see people are struggling to reach out to the support team here in this thread. It was obvious to happen as there was no reputable exchange on the board and Yobit lost credibility because of such activities. It is backed to its real value on supply demand base.
Months ago, I stopped using Yobit due to their bad supports for users.
It's risky to use such user-bad-supporting exchange like Yobit.
Personally I stopped using it when I've seen that some coins did swaps to new coins but Yobit didn't do it, instead they created artificial volume on old coins (and people lost money)