Yes, Craigslist shoppers must indeed be in frail health.
The latest indication came when I listed a grain mill for sale for the second time. A woman emailed, saying she was interested in it and giving the name of her town. I emailed back, saying I would be driving through her town in a couple of days. No response. A couple of days later I emailed again: I'll be coming through your town around 7:00 p.m. Are you still interested in the grain mill? No response. This morning I received a brief emailed apology, saying she was sick.
The first time I listed the grain mill, another woman was strongly interested in buying it, but she, too, dropped out of email sight for a while, and then reappeared to say she was sick.
The man who wanted to meet me in another town to buy my lab glassware was unable to do it after all because he came down with something.
And then there was the couple who wanted directions to the property I was selling. They never showed up, but I found out later that they'd gotten sick together.
I picture these people reclining on their chaise longues, pale faced, weak, longing to mingle in the world of people who walk around and buy things. Kind of like Mimi in La Boheme. With a laptop.