i don't know yobit is really a scam or not, but many people are still doing transactions there, that means yobit is fine. but if you have a problem there, don't expect your problem to be handled by them. only what percentage of the problem is solved
How do you know that there are still many people doing transaction? Is it by assumption because you see their website? How can you be sure that all those transactions are real? Yobit is scam, no doubt about it.