I've noticed that even when bots fail the Captcha it still stores the attempted username in my database. Does anyone know a way to change this so that the names only store if they pass the Captcha?
Topic on Extension talk:ConfirmEdit
Your observation is incorrect. If you fail the registration captcha, the account doesn't get created. Bots however keep trying until they pass the captcha: since most captchas are broken (including ReCAPTCHA) eventually they succeed.