it's allowed because it's discussion group on the Internet. In
   discussion groups, anything is permissible until content is
   removed by a moderator. Content isn't typically removed by
   moderators when they're not looking. Often even if they are, it
   is not removed unless somebody complains. Even if somebody
   complains it is sometimes not removed because it is generating
   useful discussion, even if the impetus is questionable. The fact
   that it's here doesn't necessarily mean it's condoned by the
   community or the powers-that-be. It's like many laws that are on
   the books: You can get away with anything until the neighbors
   complain. Paul isn't complaining - he rather enjoys the
   attention and why not?