I tried joining a voting trail once. Had my votes abused. Not doing that again. It's why I wrote my own bot. As for delegation it's either the same as joining a trail or worse vote buying for the bid bots. I've always considered vote buying abuse. Many people have left steem/steemit because of those pay for votes services.

Power corrupts and the whole witness thing is just one big circle jerk so people with power to do anything about it won't.