The ninjamine will always be the dark cloud that hangs over Steem, and will hinder growth and perception for years to come. Unfortunately, it is what it is, and as I mentioned, I'm just extrapolating from the bad hand we have been dealt. I'd like to see a fork (not Steem) by some people which addresses these issues though, and see how that goes.
We'll have to agree to disagree on SBD. As you can see in the comments below and elsewhere, it's largely unpopular, and at the very least needs an overhaul. If mechanisms were devised for SBD to hold roughly $1 without exerting a significant debt burden and consequently inflation on STEEM, I'd be happy for it to stay.
Yes, #3 is pretty straightforward. I understand there's differing opinion among witnesses (as with SBD), but hopefully perceptions will align over time.
I've supported Burnpost since day one. It definitely signals for significant changes so burnposts are no longer required.
RE: (Very) Basic stuff Steem needs to fix: my personal list