"Should we be concerned?"

Only if you are part of Steemit's corrupt management team, or one of Steemit's top witnesses. If you are, you have a lot to be concerned about. Otherwise, if you are among the vast majority of Steemit members, you have nothing to worry about, and in fact a lot to be grateful for. Steemit (and Steem) as we now know it, will cease to exist and along with them, Steemit's corrupt management and witness teams. For far too long, those like @themarkymark and his band of criminals, have screwed the vast majority of Steemit members out of their rightfully earned curator rewards, while at the same time filling their own greedy pockets. Tron will bring all that to end.