I would support adding this to the algorithm for reputation. Like I think current rep score (meaning what's displayed, not the actual score recorded in the code) - the KE ratio number would probably be good. The only real casualties here are the curation accounts that pay out to their delegators.
According to a post from 16 days ago, the following are the top 10 reps along with their Ratio score and what their reps would be if the KE were subtracted from it:
hbd.funder 99.81 - 3.77KE = 96.04
buildawhale 89.30 - 19.79 = 69.51
taskmaster4450 85.57 - 0.77 = 84.8
haejin 85.53 - 68.56 = 16.97
oflyhigh 85.21 - 2.26 = 82.95
tarazkp 85.12 - 1.68 = 83.44
ocd 84.74 - 19.23 = 65.51
chbartist 83.60 - 35194.04 = -35110.44(lol)
poshtoken 83.35 - 7.25 = 76.1
galenkp 83.06 - 0.8 = 82.26
As you can see, it would certainly shake things up a bit and surely knock some of them out of the top 10,but I'm not too sure if that's a bad thing or not. In the case of OCD, does rep score matter that much to their operations? In the case of haejin and chbartist, I would think those are deserved. I don't know much about chbartist but I know haejin would deserve such a score.
RE: KE-Ratio as a guide