It's a lot simpler than that: Truyoo just didn't identify the right customer! The commenter is not the customer. The website owner is. While the commenter is n

It's a lot simpler than that: Truyoo just didn't identify the right customer! The commenter is not the customer. The website owner is. While the commenter is not going to pay anything, the website owner will (or rather, might), because it's in their interest to keep their website clean and tidy. There has got to be some connection to the true customer there that would keep the sign-up limited in hurdles... BTW: Why Credit card? Why not something else that offers enough of a catch but isn't subject to such scrutiny? Phone number, perhaps? Maybe references (I.E. you'r comments are "approved" manually until you establish enough of a "rep")... This is such a huge issue that I really think it is worth you perusing more... you're basically doing the one thing that disqus avoids/is not.