I fail to see how this will increase demand for steem... It seems more like it would discourage new users from signing up. SP is already locked for 2 years, which is probably the biggest reason people don't want to be locked in as there is no guarantee steemit will even be around 2 years from now... and now adding more of a drag when you take away curation rewards... makes it likely the move will do the opposite of what it is intended to do