If a logged out user clicks on someones username, they get taken to the users profile page, but with an error message at the top of the page:
Notice: Undefined index: name in /var/www/virtual/servername.com/sitename.com/htdocs/qa-include/qa-base.php(572) : eval()'d code on line 21
But it's ok when logged in.
I'm using Q2A 1.7.0
And using the Support theme