Yeah, but that's bordering on "scam". The service I'm envisioning is more "reminds you to pay after you've used something, if you found it useful", and even the e-mail address could be useful to the creator of the thing (for further marketing).
You could even also opt to not share your e-mail address with the developer by paying directly, before accessing the thing at all.
You collect credit card info upfront, deliver the information they opted in for with their cc, then the option to not process your cc is presented.