Honest exchanges make most of their money when people trade (whether directly, via transaction frees, or indirectly, via selling order flow information or whatn

Honest exchanges make most of their money when people trade (whether directly, via transaction frees, or indirectly, via selling order flow information or whatnot). But many cryptocurrency exchanges seem to be dipping into their customers' accounts to make speculative gambles and are consequently often illiquid (if not just plain insolvent) during market routs.