wpDiscuz Comment Author Info addon provides an extended details about comment authors.
Hover on Comment Author Avatar to open Quick Info and click on Author Name or on Comment [ i ] icon (top right corner of each comment) to open Full Info.
It opens Quick Info and Full Info pop-up window with four tabs:
Please note: this is an add-on for wpDiscuz plugin. This addon requires at least wpDiscuz 4.0.6 version.