I suspect Sarah Palin ate him.
But seriously, people are always coming and going. Colm_of_Dublin's taken off, too. JP's been struggling to be engaged by this place for some time, if you'll recall. RJ is an evolving community, and sadly, it doesn't necessarily have the same attributes that attracted some members to it in the first place. Colm and JP both delighted in trading bon-mots and witticisms, snarkily poking fun at stuff, and otherwise having a gay old time. Angsty political threads and flamewars don't appeal universally, so some folks go off in search of pleasanter places.