And more seriously, people actually do adopt animals and bring them home or to some enclosure. There are supposedly more tigers in captivity in Texas than in the wild.
So my guess was not that crazy. Especially considering that it would be a much more captivating if less noble story than "redditors raised money for gorillas."
Some people see "animal adoption" and think about how you can sponsor a critter at your local zoo.
Some people see "animal adoption" and see hillbilly tailer park side show TV shows.
I guess it's all in your life experiences.