I would like to suggest considering the @OCD project and the recently launched @ocd-witness.
OCD is a curation project which has curated more than 1,000 authors already, all lead by @acidyo who has manually upvoted each curated post with his own SP as well. These curation projects are integral pillars of the Steem ecosystem and critical to improve member retention.
You can find more information about the OCD witness and everything the project does in this announcement post
You beat me to it. I think that as STEEM grows, having community projects among the top witnesses will be great for the platform.