As you said, we're not planning to use 1A1V for Steem and I personally do not believe this would be wise. What we admit is that it is not ideal for STEEM to be a jack of all trades and a master of none. It is serving a number of functions well, but the more functions that can be "outsourced" to dedicated SMTs and the more STEEM can be used to serve as the cryptoeconomic mechanism for maintaining the sustainability and scalability of the Steem ecosystem, the more antifragile the system will become. In order to have a system that anyone can join anonymously and with ease, it has to be purely stake-based. Anything else will introduce friction, and decrease anonymity.