That's quite interesting - milik80's or bitcoinflood's curation seems rather healthy to me, they were curated by (almost) all curators in a kinda equal distribution.

Accounts curated like 15 times by one and only curator seem rather peculiar.

Could you also list accounts with upvoted comments? With say 4%+ VP, which would make the payout at least $1, if I am not mistaken? I assume there might be some more milking under the radar - upvoted smileys and so.