I have been using the wonderful Multiple Account Detection add-on, and I'm finding that a lot of the multiple account users are using the same email address to register more than one account. I guess I never missed the fact that there is no option to prevent this in Options > User Registration. So, whadja fink, guvn'r? Please add that option so life can be beautiful again. Or if I'm just a jackass and missed that option somewhere, feel free to mock and belittle me (then tell me where it is).