What about disposable email address services who offer exclusive domains for paying customers? Are you going to characterize those addresses as "fake"? I see

What about disposable email address services who offer exclusive domains for paying customers? Are you going to characterize those addresses as "fake"? I see you are actually doing that now! I know these evil disposable email address users and they are not the abusers you think they are. In fact a lot of them have been more abused by the sites you are providing a service to than vice versa. There are better ways of combating abusers then just banning a domain, and would cause a lot less grief. A central repository of "fake" domains inevitably will cause false positives on a large scale and will cause a whole lot of grief to everybody. Full disclosure: I came out with the first disposable email address service, as far as I know, and I'm quite certain I even coined the term "disposable email address", as obvious as it may seem, it wasn't at the time, and I can't imagine what you think of me!