Automatic Spam Filter uses a simple yet effective JavaScript method to reject comments by robots, and now has an integration option for Google reCAPTCHA as well.
You can enter your reCAPTCHA API Keys on the Discussion Settings page in your wp-admin.
To display testimonials just place the Widget on your sidebar or insert the Shortcode into a Page or Post to display any comments with Good Karma. You can limit how many are displayed and reverse the sort order or even randomize what comments to show.
Note: You can manually edit the karma value for individual comments in the comment section of your wp-admin and then use that value to filter and display only those comments on your testimonial widget.
The following example Shortcode would display 8 Comments with the Karma Value of 100 under the heading Client Testimonials: 
[TESTIMONIALS title=”Client Testimonials” karma=”100″ number=”8″ /]
Last Updated October 2024

EZ Anti-Spam Comments with reCAPTCHA

A simple yet effective Spam Filter. A Widget and Shortcode to display Comments with Good Karma as Testimonials. Plus the ability to Move comments and  …

RosemarieP

A simple ‘I like this’ plugin inspired by the facebook ‘like’ functionality. For visitors who don’t want to bother with commenting.

Like This

thanks

A simple 'I like this' plugin inspired by the facebook 'like' functionality.

EZ Anti-Spam Comments with reCAPTCHA vs Like This