I couldn't found rock solid way yet. For that I need some time. But you can use below meantime if it is urgent. Or see if anyone have better solution.
In theme file find function around line #104 public function logged_in()
add below line at the very first
$this->content['loggedin']['data'] = (qa_is_logged_in() ? preg_replace('/<a href=\"(.*?)\">(.*?)<\/a>/', "\\2", @$this->content['loggedin']['data']) : @$this->content['loggedin']['data']);
So it will look something like below
public function logged_in() {
$this->content['loggedin']['data'] = (qa_is_logged_in() ? preg_replace('/<a href=\"(.*?)\">(.*?)<\/a>/', "\\2", @$this->content['loggedin']['data']) : @$this->content['loggedin']['data']);
...
}
Also add this entire method into theme file. You can place anywhere within the class
public function post_meta_who($post, $class)
{
if (isset($post['who']['data'])){
$post['who']['data'] = preg_replace('/<a href=\"(.*?)\">(.*?)<\/a>/', "\\2", $post['who']['data']);
}
parent::post_meta_who($post, $class);
}
This will remove link from username. Somehow I still need to find to remove link on edits event. I am not saying this is the best way and hope anyone will comeup with some better method or may be I will see once get some time.