I am more than sure dominikherzog from Yobit Support doing joint job with scammers in stealing coins.
Eh, could be. I wouldn't put it past Yobit or anyone working for them to scam people outright, and in fact I think a lot of members here are just waiting for them to pull an exit scam. It's been known for quite some time (as I know you're aware) that Yobit is one of the sketchiest exchanges out there and should be avoided if you have any alternatives.
I've heard of LDOGE but I'm not really familiar with it. Is that one of the shitcoins that pretty much only trades on Yobit? I've never seen it anywhere else and frankly didn't think it still existed.