You're missing a large and probably very important post filter mechanism:

• Filter the off all the Bots upvotes regardless of who is sending it (super important)

• Filter off segments of upvoters: (also important to see who they are influencing)

Just silly examples: active-dust, inactive-dust (possible dummy & swarm bot accounts), active-minnows, inactive-minnows, dolphin, orca, whale, etc

• Filter of promoted Post promotion from groups which skews the income but does not necessary attract new followers (from Steemit or outside) - eg. @curie, @blah-blah-group-syndicate-circle-jerk-club-my-aunt-uncle-50-best-friends....ok, so that last user might not be easy to filter out, but there are a ton of others you can filter out to make a greater impact.

just my $0.02 SBD to enhance your post @edicted