Yobit is fine. And you can find pump and dump happening in yobit. Join a good pump and dump group for quick and easy money!
https://t.me/pumpanddumpco is a new pump & dump community that promotes fairness and honesty. Their founder is the admin of three pump and dump groups, so I guess they are legit!
Yobit exchange sites was still functioning, however lately it was experience of some problems but I know that they can manage it. Most of the users of this exchange were experience of delayed and not visible amount in their account, but it was not mean that it was scammed. But I don't know if the Yobit was upgrade their system that's why it happen or they were affected by traffic of blockchain.