RE: Rejecting HF21 in its current state
I wish we could run some simulation though. But it’s just not like running a purely engineering simulation to see if a tower or bridge will collapse. With the economy, there needs to be stakes at hand and enough people taking it seriously, which a live environment can only likely do. It doesn't mean we can't attempt to make some intelligent guesses as to what should be done though.
We can apply the measures one by one, but will it achieve the intended effect that was hypothesized in the first place? I don’t necessarily see it as multiple changes by the way, as they’re in effect, just one change. For example, we can simulate the 25% downvote measure and see how things turn out (still not sure how to simulate properly). If we roll out just that.. there are other ways to circumvent the goal of the EIP, hence the other measures.
Personally I'd prefer DVs on the lower side if its delegatable. I think 25% is a yardstick proposed for something sufficient enough to turn the status quo around, accepting that it'll definitely create a lot of toxicity, while being low enough that it can't be used to push rewards in any meaningful way. If we go too low on this then it might be insufficient to turn to this place around to a new equilibrium while introducing similar levels of abuse / toxicity as 25% DV would have, rendering it a bad move.
I've tried to explore the topic more in-depth here: https://steemit.com/steem/@kevinwong/what-will-likely-happen-when-steem-s-economic-improvement-proposal-eip-is-put-into-motion