[Solved] users most registered and logged in to comment doesn't work in wpdiscuz

hey,

first of all your plugin is awsome, i like it so much, thanks for that ^_^

everything is working well except when i check "users most registered and logged in to comment" option on wppanel > settings > discussion it doesn't work with your plugin (not logged in users still can leave comment while "users most registered and logged in to comment" option is checked ).

i tried to find some options that force users to registered and logged in for leaving comments in wpdiscuz settings but i couldn't find anything related except "hide reply button for guests".