After reading your replies here and on reddit, it has become clear to me that you have misinterpreted my proposal. Maybe that's my fault for not being clear.
My proposal is almost identical to the proposal to start using satoshis.
This is true, but there are a great many possible reasons for this, including that my post is virtually a duplicate title of the satoshis post, and posted after the satoshis post. Reddit often doesn't respond well to that.
Whether I presented the idea with the right timing and in the way that gets reddit to vote it to the front page of /r/Bitcoin should not be used a basis for an argument for or against this. Frankly, most of the people in that thread did not even understand my proposal. Some thought that I was insisting we use values like "0.00001 BTC" or something.
/u/DoxyDoxxx when defending my proposal was very well received on reddit:
http://www.reddit.com/r/Bitcoin/comments/1r3xl1/a_proposal_skip_mbtc_and_switch_directly_to/cdjfry8
I quite agree. Though you seem to have entirely missed the point, and this is where it becomes clear that you misunderstood my proposal.
I would never tell them that "1 dong = One hundredth of one one-millionth of one Bitcoin". I would only tell this to the couple of million users that are already using bitcoins as the unit they understand.
If you switch to satoshis right now, almost no sites represent bitcoin prices this way. You would be converting between bitcoins and satoshis for a long while until full satoshi adoption was complete. This would be a lot harder if you do it your way instead of mine.
I am saying that we do exactly what the satoshis post says, except we choose a unit that is 100 times larger.
So instead of saying "That car cost 150M satoshis" you would say "That car cost 1.5M microcoins".
That's it.
That's the only fundamental difference between my proposal and the satoshis proposal.
The proposal to switch to satoshis is a fairly big change. The switch to a smaller unit would be far easier for many people if we could allow them to continue to speak in terms of bitcoins (and even mBTC) as they already are. In other words, the proposal in the OP is compatible with existing measurements of Bitcoin, while still providing all of the benefits of using satoshis.
I am not "obsessed" with SI symmetry, I just recognize that conversion between satoshis and bitcoins and mBTC is quite a bit harder than it is between microcoins and bitcoins and mBTC.
This argument exactly as it is also applies to the idea to switch to satoshis and use them with SI units!
Again you are missing the point. Using uB as the default counting unit is virtually identical to the idea of using satoshis as the default unit, except for 2 decimal places.
To borrow your verbiage, what is your obsession with the base unit? Why do we have to use the satoshi when we could achieve the same benefits with microcoins, while gaining additional benefits by using microcoins, with virtually no downside?
What is the advantage of using satoshis over microcoins?
What is the disadvantage of using microcoins over satoshis?