Due to spam issues with the new comment system, I've added a comment filtering system called Akismet, as well as a custom captcha. The captcha is pretty darn easy, and if you can't figure it out then this is clearly the wrong site for you to be visiting.
All puzzles now have a tiny link you can use to post on places like Twitter. Just link to thegriddle.net/p# where # is the number of the puzzle.