Yes,  I agree with you to some extent that John's contributions do seem to have become very much the same over the last few months.  Yet he does occasionally point us to some good sources on the internet, today for instance a link to some poetry.   

So - to gently counter your point a bit - he does 'add' to this interesting form of community.  This linking contribution provides sort of the drudge for the left - you know - in good way.

cheers