well,
First this is the module request/discussion forum. Which allows users to discuss their opinions on threads posted, which is all I did. To be honest, my level of resource conservation really has little to do with anything. I simply stated that I personally think it's wasteful. What may appear trivial now can cascade into massive resource consumption later, when that happens you are the one to explain why a certain feature is no longer available. There is a saying called: "Mind your pennies and the dollars will take care of them selves", which simply means that if you are frugle with your spending of smaller amounts of money then the money will be there for the larger items you need. In this example being frugle with resources will always pay off regardless of the amount of users you have.
Secondly, to insure email addresses are valid, simply enable the NSEmailReg that you previously claimed you don't need and email address verification will be done automaticly.
Third, just because you think it's a good idea to spam your users with links is a good idea, I'd be willing to bet your users won't. Personally, I visit hundreds of networks every year and occasionaly register my nick. I don't read the email contents other than to get the confirmation code, I ignore the rest. Again, I'm sure users do too.