I'm doing a reminding service about new episodes of series. The main idea is to make it very simple to register, like this:
The problem is about the security, I'm not using CAPTCHA nor confirming email or Twitter accounts. A bot could easily put tons of addresses and I'll be spamming them.
A much safer way would be something like sending an email with a link to confirm. And for Twitter use the login API. But that, of course, adds more steps.
Is there another way to solve this problem? Are users so used to confirming emails that it won't bother them?