Private "Re-Housing" Adoptees

I read this series with a huge amount of horror-link
The jist: a bunch of people when faced with adopted children realize the kids have problems they can't or don't want to handle, go onto the Internet, and randomly give the child to that couple. No legal paper trail, no background checks, no nothing... and there's pretty much nothing illegal about it.
WTF?!
These kids sound like they're being treated like pets, not people, let alone small vulnerable people who have been through a lot and were uprooted from their culture to a new one. Actually these days I believe adopting a pet is way more complicated.
Words fail me.
The jist: a bunch of people when faced with adopted children realize the kids have problems they can't or don't want to handle, go onto the Internet, and randomly give the child to that couple. No legal paper trail, no background checks, no nothing... and there's pretty much nothing illegal about it.
WTF?!
These kids sound like they're being treated like pets, not people, let alone small vulnerable people who have been through a lot and were uprooted from their culture to a new one. Actually these days I believe adopting a pet is way more complicated.
Words fail me.