something needs to be done to seriously improve that classification.
bots that give 3 times as much upvotes than comments (and we are talking just a few hundreds) are classified as top 500 spammers with a 1.0 spammer score (yes, I am talking about my poor @cuddlekitten) while actual spambots leaving thousands of identical comments get a 0.42 human score (see @tomole444).
For the time being maybe you could put a huge warning sticker on the API as it's still pretty damn inaccurate. A lot of people are already embracing the API, and yes, it is a great step forward for the steem ecosystem... but with such inaccuracies it could be quite damaging to the wrong accounts.
RE: Steem Sincerity - Working with SteemPlus to crowdsource spam classification training data