It's not perfect by any means, but subjectively speaking I feel it's not bad.
We just hit an all time low in the number of users who joined and posted within 30 days in June.
We have gotten better at policing the raw exploitation of the reward pool (a comparison to steemit.com shows this plainly), but our traffic and rate of new joiners is flatlining.
RE: The horrendous failure of curating Quality Content