Thanks for putting together your thoughts and getting a discussion started on chain.
As others have mentioned I think disapproval of witness would open up new attack vectors. I think reducing the amount of witness votes will help reach the same end goal with less attack vectors and be less political.
I'm interested to know what is the original rational behind the current 30 witness votes. Do you know of any info regarding why it is 30 in the first place?
I had the exact same question! And no, I don't know why 30 slots were chosen.
Does anybody reading this know the answer?
https://github.com/steemit/steem/issues/23
This old issue from dan references the 30 idea but with no explanation why 30.