If you want to completely uninstall the plugin and get rid of any data in the database, you should properly uninstall it: Deactivate the plugin first via the WordPress plugins page and then click Delete (same page, next to the plugin). For multisite installations, this has to be done by the network administrator on the network plugins page.
The plugin saves additional data about whether commenters and users want to display a gravatar or not (if you select that mode in the settings). The following data are stored by the plugin and deleted upon uninstallation:
- custom table(s)
[prefix]_avatar_privacy(global or per blog on new multisite installations) usermetavalues per user:use_gravatar,avatar_privacy_hash,avatar_privacy_user_avataroptionper blog:avatar_privacy_settings- option per network (
sitemeta) on multisite installations:avatar_privacy_salt transientper commenter:avapr_check_[mail hash]
The default avatar image is set to the mystery man if you selected one of the new local default avatar images.
