That is exactly my fear now. I've said this from Day One - What if the Alexa Ranking is fake? What if it is driven by the relentless churning of the big guys? Instead of good posts rising to the top of search - do we have things like videos with no text? I have been keeping the blinders on for this answer so far.
If crap content is what makes this place rank - we don't need the black hats to arrive. Steemit will implode all on its own as the outside world arrives to see garbage. I really hope that is not true and that is why I stay here and try.