A situation came up, and apparantly hes no longer in the competition. Most likely, based on his posts, he quit because of the new rules, or something like that. theres people who are on 9, some on 8, and most on 7... maybe theres some on 10, 11, or 12. Or maybe the house is won already. Ken's been quiet lately, so its a possibility.
Good job on getting to 7 obs! I quit because of lack of time, and frustration. Trying to make my own treasure hunt of sorts. I came up with 2 "perfect" puzzles, i think. Complex, yet logical and could take as much as a day to a year to solve.