I wasn't talking about anything big, maybe just one at a time and just sell for cost. Something like that. I've nursed dogs back for the vet before. I would think only experienced riders should consider adoption though. There is no telling what has happened and might spook even the gentlest. It wasn't what I was looking for for us but once I started reading I couldn't stop.
Those people that do adoptions, are ~usually~ pretty good at evaluating the animals though, and are if anything overprotective and reluctant to send an animal to anything but an appropriate home. I suppose there are well-intentioned but desperate conditions also, but most of the adoption programs don't hide or mask problems. They don't want the horse to end up rejected or abused again.