Then, wetsuit should have an IQ of 280 and he should sleep like Napoleon, 2-3 hours a day. I can't imagine, how is it possible to be knowledgeable everywhere(backend, frontend, large scale server management, perfect probability theory, etc. )
I think you're giving too much merit where it isn't exactly due. Sure it's difficult to program a site without programming knowledge. If I particularly wanted to, I reckon I could produce a site very similar (it wouldn't do anything for me though as I couldn't host it unlesss I was Wetsuit's neighbour

).
A lot of it should be able to be handled with HTML, PHP, SQL and Javascript (with a python or executable script in the background running to send the transactions).
It's not really that much of a large scale server either, the website is about half a megabyte in its entirety...
No, TheQuin is the only helper, because his grammar and manner of talking is always the same.

I'm talking about wetsuit.