After getting the TLDR from blocktrades, I agree with the proposal at a high level and I expect many on the steemit team would. These types of specific changes also happen to be something any devs (even @blocktrades) can code and make pull requests for (or even fork into a new repo for the Witnesses!) - and even be compensated for (e.g. thru Utopian). In my eyes the proposed parameters corrects some of the last overeager engineering choices of the past. That said, there are many solutions to better curation - this simplification is one, and many are needed. At blockchain level (SMTs; SMTOracles; STEEM tokenomics); and application level (Busy/SteemitChainbb/etc) controls (Communities/Sorting Algorithms). No silver bullets.
RE: Voting Abuse and Ineffective Curation: A proposal for blockchain-level change