I have pretty much given up with them these days, although I will try to cash out as I have about 500 points just sat there.
To answer your question, the terms and conditions state you cannot have more than one account (
https://www.prodege.com/terms-int/) and it does take about not manipulating the system to give yourself a benefit so you could get yourself banned completely from the site by opening another account and your points confiscated.
I suspect it wouldn't work anyway, although I'm sure someone else will know.