Most effective way of fighting SPAM: Human verification

We installed a new plugin for our blogs that would reduce the SPAM comments.
The solution is as simple as it seems: human verification.

When the plug is activated in your blog. Anyone who would like to leave comment should answer a basic arithmetical question:
captcha

In order to take control of the spam, we believe that human has a better chance to answer these question than an oversea computer bot.

The settings are located on the lower menu: BWS Plugins. Here is a screenshot of the settings that we recommend to our admins.
captcha settings

 

We wish you spam-free days.

Sincerely,
your blog support team.