How to Display Avatars on Your WordPress Blog
In the final section of the Discussion Settings page, Avatars, you can select different settings for the use and display of avatars on your WordPress site.
nearby sidebar, What are avatars, and how do they relate to WordPress?, for information about avatars.) In this section, you can select different settings for the use and display of avatars on your site:
For the Avatar Display option, decide how to display avatars on your site.
Select the Show Avatars check box to have your blog display avatars.
Next to the Maximum Rating option, select the radio button for the maximum avatar rating you want to allow for the avatars that do appear on your site.
This feature works much like the American movie-rating system. You can select G, PG, R, and X ratings for the avatars that appear on your site. If your site is family-friendly, you probably don’t want it to display R- or X-rated avatars, so select G or PG.
Select the radio button for a default avatar next to the Default Avatar option.
Avatars appear in a couple of places:
To enable the display of avatars in comments on your blog, the Comments template (comments.php) in your active theme has to contain the code to display them.
Click the Save Changes button after you set all your options on the Discussion Settings page to make the changes take effect.