If thats the case, more often than not you wont be in the high-frequency realm. In other words, the "self-fulfilling" trades are usually short ideas that hedge funds highly publicize or maybe a penny stock someone wants to pump (illegally) - and everything in between.

Where higher frequency trades do become "self fulfilling" can be in intraday technical analysis. For example, there are many people that follow RSI signals in options. Youll see retail people trade this, and then market makers will step in and bring things back in line - because options dont trade on technicals...