Funny you should say that.
I've read on other forums that people had the same experience. They were clicked on Masha, Sasha & Dasha, but according to them, somehow Leora showed up.
There are also video hosting sites that claim to have Leora videos from respectively 5, 7, 9 and 14th of July this year. All are videos I've never seen before and the dating of the videos have never been wrong before on this site. So I'm pretty sure something is happening "behind the curtain".
Other participants that have been unlisted are also shown on this site with videos that claim a date later than the "unlisting". Ex. Jane & Dick, also Nelly & Bogdan.
Thinking about it, it was pretty strange how it all panned out. First went to premium, and then shortly after just suddenly disappeared altogether.