Great points. However, those that came here for the quick bucks when price was high, will come back again when price rises. I also think that next uptrend will be caused by more adoption and therefore new users will come at an exponential rate, meaning there will also be more "get rich quick, post spam" kind of people.

I don't know if steem price causes every bad element to leave as many have figured out and adopted ways to use bots to get paid for spam. And some of them will be happy with whatever they earn. Other point that i can think of, low price means more volume is needed to sustain similar level of earnings, therefore much more spam.