Since I am usually silly person, I decided to talk with them, and ask for newsettler. Over the course of chatting spelling got a tad better (on the other hand, english isn't my native language, as my spelling might have betrayed earlier.), making them a bit more legitimate. They required only email adress so far (no wild spam spike noted so far, and well, no payment needed) Mail I received today says that first two months on that server will be free of charge.
So, if I will be able to check out how it is really working before jumping onto that cart, they are currently looking for more people for server stability test.
I certainly do not encourage anyone to pay them, as I myself am still tad worried, but I think since they offer testing period... maybe they are (like me) from the parts of the world where english is really foreign language, and two months of free playing time seems like a good period of time to make a choice.