I was thinking about the $5 charge.
www.craigslist.org/about/help/paid-how
Weird website, Billing Options is a jpeg. I guess that so people can't click on anything. Anyways, AmEx, Mastercard or Visa; no gift cards or 'pre-paid credit' cards.
This is why I don't have a Bitcoin wallet. The people who should offer that as a method of payment don't. I do see that I could run
a full Bitcoin node (not mining rig) on a Raspberry PI. I've got a persistent connection.