Drupal Association members fund grants that make connections all over the world.
user_login_block (user.module, line 1284) defines $form['links'] as list of links, stored as markup.
When someone needs to alter those links (i.e. http://drupal.org/node/1784544), they need to recreate that links from scratch.
When this happens, if there are multiple modules that alter those links, functionallity from one of them overlaps the other, and only the functionallity (the links) of the last one remains.