Do you ask why they're powering down?
I don't. And with high KE I mean something like 10-20 or above KE.
https://peakd.com/@avatara/posts For example an account like this or https://peakd.com/@peerfaizan1/posts or this.
Unless you are powering down every little bit you get, it is very very hard to be in this level of KE and it is clear to me they are farming pennies on the chain. (Well, and those are the ones I can meaningfully prevent given my power.)