Tired to delete spam comments in your drupal site? Why don't you install CAPTCHA module  for your site. It will help you prevent from spambots.

What is CAPTCHA

A CAPTCHA is a challenge-response test most often placed within web forms to determine whether the user is human. The purpose of CAPTCHA is to block form submissions from spambots – automated scripts that harvest email address from publicly available web forms. The CAPTCHA module provides this feature to virtually any user facing web form on a Drupal site.

Reuters reports that a Brooklyn man was sentenced to 30 months in prison for sending spam to 1.2 million subscribers of AOL. According to Reuters:

Adam Vitale, 27, was sentenced in federal court in Manhattan after pleading guilty more than a year ago to breaking anti-spam laws. He was also ordered to pay $180,000 to AOL in restitution.