Spot on observation. The market volume seemed to be dominated by low to mid size buyers today. And exchanges that offer direct dollar deposit could not handle the volume where as bittrex stayed quite functional all the way to the end. The top was off scores of people were still buying at 19K range with endless small volumes. A good deal of newcomers parted with their money today.

I was online through out the craze.
https://steemit.com/bitcoin/@rocannon/bitcoin-runs-through-any-and-all-resistance-lines-bounces-back-from-19-500k-all-major-markets-froze