A couple of things:

1. reputation metric isn't currently part of consensus, just a tool for steemit.com
2. reputation is cheatable at this point in time
3. we are looking at some of the following options:
   a. no curation rewards for voting on posts above a certain threshold (~$1000)
   b. reduce the target level of voting activity (faster steem power decay)
   c. implement bots that give extra power to those with good reputation by following their votes.
   d. implement bots that grab the most profitable curation rewards from good authors minutes after they post (giving 90% to author) and discouraging others from jumping on the bandwagon simply for rewards.

There are many options out there and we are looking for things that are simple, scalable, and derived from first principles.