I don't understand. You are proposing small and debatable improvements, with the only major change being the fact that there is no power up. Why not use all the energy you put into Avalon to improve the Steem blockchain instead, getting voted as a witness in the meantime by doing 4 or 5 posts with updates.
Yes, STEEM was very slow and disappointed you, but the whole point (especially with the SPS) is that talented devs like you should carry it forward. If you are capable of creating a blockchain, you are certainly capable of getting us SMTs faster.
Also, I know that @ned and most people at Steemit, Inc really respect you. You could have endless discussions with them about Proof of Brain when designing SMTs, getting the features you would require for Dtube coin.
I fear that creating your own blockchain was bad for both STEEM and Dtube, and I hope that if Steemit, Inc starts working a bit faster you might come back and create an SMT one day, even help with the development of STEEM.