title: If i use captcha will i be able to stop the spam completely in my blog?
body: <p>I have a Wordpress blog and the only user input is the commenting system. I want to totally avoid spam comments. Wordpress comes with Akismet but I can also use Captcha. Which plugin/method should I use?</p>
  
  <p>My client doesn't mind users entering verification strings to post comments. If I adopt either Akisment or Captcha will I be able to completely control the spam?</p>
  
  <p>Is it possible to use either Akismet or Captcha for a simple 4-digit verification? If not then please also recommend a plugin/method capable of just a 4-digit verification.</p>