Fake profiles are used by stealing photos from Instagram.
If a girl can't be bothered to fill out a profile she is fake!!
Many of the new profiles are created at the same time, using the same profile names and ages. For example I saw four "Marinas" created at the same time, all with same details, using the same stolen photos from Instagram.
When you complain to Russiancupid all you get is a pre-wrtten auto response.