Supposedly the UK edition of SCRABBLE will allow proper names.
This seems seriously broken, because there’s really no way to know what’s legal or not.
Yeah, the argument about having to memorize SOWPODS has validity, but what will be the arbiter of what’s legal? More proper names get created all the time. And what languages are you restricting this to? Who’s to know what all the last names in Croatia (or Tonga) are.
Essentially, it will become a word game that has nothing to do with words. To me, those are a lot less fun because they’re totally arbitrary.