Very thing is subjective. Decentralized? even that.
Right now I don't follow any voting trail for one reason, my subjective evaluation of quality may not match with that of the others.
I tend to agree with you that at the end of the day it is accountability that matters. Personal accountability.
Always opt for manual voting as your first choice. This creates a better / fairer reward network for everyone who receives your votes and gives you the autonomy to decide when you should do it.
Absolutely, that is how it's gonna be.