This is going to be pretty off topic but I just want to share my thoughts.
I got Bugs off of Craigslist almost a year and a half ago. Despite doing extensive research, I had no idea there were such thing as rabbit rescues. I was 13 without a job and I doubt a rescue would adopt out to someone like me in the first place. I came across Bugs's ad and I messaged the woman and told her that I was 13 with no job and had to use my very small allowance to provide for him. She looked past that and saw a loving owner. I'll forever be grateful that she did that. Bugs and I have been through hell and back and I don't know what I'd do without him. I'm now a couple months from being 15, I have a job and steady income, and even a 2nd rabbit (that was adopted from a rescue). What I'm getting to is that there are people who are looking for a snack for their snake but there's also people who just want a sweet little bunny to love. That being said, personally I'd avoid selling an animal on Craigslist but I don't see a problem buying an animal from the site. My mom was looking for a dog and got scammed hard so I'd definitely be cautious and understand what you're getting into