If money were the driving force here, I would be an Anastasia Date affiliate and singing their praises.(2) I offer very positive reviews for some sites that offer no affiliate agreements.
Your friend has probably heard that from another friend.
Russian dating sites that offer good honest service will usually continue to do so as long as they are under the same ownership/management, and those that are scammy and crooked will usually continue that way.
One of the newer Ukrainian/Russian dating sites is Match Guaranty.
Navigating the Russian dating sites and agencies should be a scary prospect for someone new to pursuing Russian and Ukrainian women.
It is a virtual minefield where you have no idea who to trust.