I think you are wrong to completely not care about the KE score.
If the account on HIVE has a good KE score < 1 it means that this account is contributing more to the value of Hive than it is taking away. Don't we want Hive users that invest real fiat into HIVE not to improve their KE score but to improve their curation power?
Also, if your score is less than 1 and you are never powering down that means sending some inflation your way is almost like upvoting burn posts that Hive is locked up except when that user is upvoting others. For example my KE score is 0.70 right now and it will go lower as I am adding more to my staked Power than just rewards and never power down.
There are other ways to contribute to Hive like running a Hive Witness. I am running one with the latest Hive Witness software and since I never take any hive out it means that not only I am helping to strengthen Hive blockchain, but I am also spending my $ to run it to acquire that extra 200+ Hive per month to build up my voting power:
I try to learn more about Hive every day and try to engage beyond just the replies to my posts but also on the subjects that interest me.
I also bought a little bit of Hive using other crypto I bought like ETH and transferred it into Hive so we want users that not only create content, interact with others, but also invest into the Hive.
In this regard I don't care about KE, if we can fix the big difference between certain accounts getting a lot of inflation that barely do anything compared to those that do - then the next thing would be KE I suppose, while still looking at how actice they are and valuable.
Not voting for users who have a low KE but manage to drive attention to their posts more than those with a higher KE is kind of dumb, imo.
Not to mention how those with barely any activity potentially farm on multiple accounts as well all with low activity.