People who use WordPress and the BuddyPress plugin can improve their privacy by disabling Gravatar fallback when a profile picture is missing. You can prevent third-party requests to gravatar.com simply by creating a plugin with this code:
You can restore Gravatar functionality easily at any time by disabling the plugin through the WordPress menu.
The plugin can be downloaded from the public WordPress repository.
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The plugin to disable Gravatar was created to improve privacy of my Premium “BuddyPress Improved” plugins: