Although we're advice not to feed the trolls but here's what i have to say concerning this issue. Is yobit a shady exchanges, probably yes but is Cryptotalk a shady forum? Definitely not as we have no proof yet so we can't conclude. From the look of things, it seems the only associated between the two projects is that cryptotalk is using Yobit panel as a management platform. Now until that is proven otherwise we can judge Cryptotalk based on the reputable of yobit.

Concerning @Yahoo's association with the project through management, this has been debated on and it's better that way than the previous of leaving any campaigns requiring high number of post which will definitely result to spamming to operate unmoderated.