I'd like to know if there's a reason why people are keep buying YOVI, Maybe they don't know how it works. 
Even if the market will be reopen, if nobody set a buy wall or something, few people can dump, and price will go back to 0 in no time
if I'm not wrong to add coin at yobit you can pay with YOVI to listing your coin there.
maybe this is the reason why they are keep buying. 
That's one reason hold my 20K Yovi in yobit  

the coin has no utility whatsoever. you cant use it to pay for listing ( was the plan but nothing has ever materialized)
people buy it because they don't know how it works and they don't know that there are no uses for the coin.
besides newbies and or speculators....most likely yobit is also purchasing is own yovi to drive up price.
on a positive note, wallet still syncs and stakes