ive heard posts on tumblr about ppl saying ''___ is in my campsite!! add me if u want to adopt ____!''
but its not proven yet
this kind of thread was made already but it wasn't solved yet
I really don't think it works but several different people have claimed that it worked for them. I think one person said they were able to get a villager from a camp when the original town was full? They also said they exited the town and came back to try again several times.
I tried this with a friend when she had Merengue. I was pretty new to Animal Crossing New Leaf at the time, and she told me it works... spent an hour trying, got nowhere and gave up. A few months later I had a villager in my campsite a friend wanted, I can't remember who it was... Monique? She was also new to Animal Crossing New Leaf (but not to the series) at the time as well, and she thought it was possible. I guess its common sense??? I don't know anyone who hasn't fallen for this...seriously.