well, its definitely having
some effect. i've noticed a decent increase of traffic, plus a whole buncha posters have returned (apparently, they've just been "lurkers" for the past few months)
if anything, the articles stimulate conversations and come from new perspectives and view points, which gives off a very open atmosphere.
granted, no one does any of this for "free"...
the rewards (bribes) i've handed out include a custom title, mod status, a custom avatar, a "headline" graphic, (restricted) ftp access, and some other little goodies. the freedback and response from this has really gone over well with everyone.
and all of which started from just a generalized "member drive" (a general thread asking users for help / feedback)