On average I don't think $100 is that crazy. Most haven't YOLO-ed anything. While many YOLO-ed for 1-2 shares, there are many who have YOLO-ed for thousands to tens of thousands of dollars.
I'll also add that tons of people I know who have never traded in the markets woke up Tuesday and Wednesday and decided to buy a single share for the lulz. I'm fairly convinced 70% of the volume may have been due to retail.