by Richard Phillips on WordPress.org
A simple and robust anti-spam plugin that adds a submission delay, JavaScript token, and a honeypot field to your site's forms.

Settings page with counters.
SpamScrubber helps block bots and spam submissions by:
– Adding a customizable delay to all form submit buttons.
– Obfuscating form actions for non-JavaScript users.
– Adding a honeypot field (with customizable label) to trap bots.
– Blocking direct POSTs by requiring a JavaScript token.
– Providing admin stats for various spam attempt types.
This plugin is free software released under the GPLv2 or later.