Thank you. The one top of chain was referring to was https://www.gwern.net/docs/psychology/okcupid/weexperimenton...

That doesn't seem to show that "Long conversations were instantly abandoned." The graph of "conversation life expectancy vs. normal" vs "where in the thread the photos came back on" does show a dip in life expectancy of 20%-30% if photos appeared after just a few messages, but the gap grows smaller the more messages had been exchanged.

In other words, the longer a conversation had been going on, the smaller the influence of learning what the other person looked like was.