I do think it is a good idea, but I can't vote because none of the options are right for me.
If there was a 'Yes, good idea, but I won't actually make use of it myself' option, I'd click it.
That isn't a brag, btw!
I just tend to go for arcade-style games which quite liderally HAVE NO END. Like Sensi.
It would make for an interesting resource. Dudes who might have been frustrated by a game for years could use it to see just what they were missing. And the warning indicators are all clearly indicated, so nobody can accidentally stumble in and then complain that their game has been, well, spoilt!