This is lecture about some nonsense at math faculty of Saint-Petersburg University: https://youtube.com/watch?v=KoVBe5ikgHQ [Embed]
Guy who invited him (at start of the video) is a real mathematician, although a schizo too.
Pahom (Pahomov) is very eccentric media person, not so famous, but after sudden popularity of Green Elephant he became more known and even invited on some stupid TV-shows about psychics and paranormal. It is hard to say if he is really serious in his image though, maybe he isn't mad as he looks.
Second one (Epifantsev) is more serious guy, he often plays in some "art movies", but he is also actor that may be seen in average Brazil-like TV drama for housewives. That is especially fun when you know about Green Elephant and his other activities.
>Well people had to saw something in it to spread memes of it. I guess it has both shock and humour value which makes it a good source.
It is more like combination of shock and absurdity, not humour, I think. I don't think that authors even tried to make is fun, it is more like crazy modern art.