"custom comment types" won't be displayed (twentyten)

[pfefferle]

twentyten only supports the comment-types "", "pingback" and "trackback" any other type won't be displayed!

rearranging the switch/cases should fix the problem:

  switch ( $comment->comment_type ) :
  case 'pingback'  :
  case 'trackback' :
    some code...
    break;
  case '' :
  default :
    some code...
    break;

Core doesn't support custom comment types. I don't see a reason for Twenty Ten to do so.

I thought that's why "get_avatar_comment_types" was added: http://core.trac.wordpress.org/ticket/11880