1. These 3 patterns have become the same.
2. COM_EB_INSTALLATION_INITIALIZING_POSTINSTALL="Post Installation Cleanup" - duplicated

3. How?
COM_EASYBLOG_BLOG_IMAGES_ALREADY_EXIST="Blog image already exists on the site"
COM_EASYBLOG_BLOG_IMAGES_ALREADY_EXIST="The specified blog image title already exists for the theme. Please use a different title for your blog image."