wpDiscuz User & Comment Mentioning
Installation and Configuration
If for some reason you cannot install this plugin using WordPress plugin upload system please do that with this alternative way. Unzip, and then upload the /wpdiscuz-user-comment-mentioning/ folder to your /wp-content/plugins/ directory using an FTP application like FileZilla; or any other FTP program is fine also. Make sure you have not double /wpdiscuz-user-comment-mentioning/wpdiscuz-user-comment-mentioning/ directories nested inside each other, please correct this before you continue. Then in WordPress, go to WordPress Dashboard > Plugins, and then activate the wpDiscuz User & Comment Mentioning addon.