Error message

Deprecated function: Methods with the same name as their class will not be constructors in a future version of PHP; GeSHi has a deprecated constructor in require_once() (line 915 of /var/www/davidherron.com/sites/all/modules/libraries/libraries.module).

CAPTCHA and other methods to reducing SPAM

SPAM (the unwanted extraneous content that floods the Internet, not the barely desirable canned meat product) can infest an unprotected Drupal website. There are ways to prevent SPAM on a Drupal site. Otherwise you're likely to be spending lots of time removing the infestation. I sure was early on in my career with Drupal.