Craigslist is a good thing. Sure people can flag other people for no reason, and scams can happen if you arent careful. But if you really need to rehome your pet and CL is your last option it seems like a lifesaver to some people. You can give your pet up to a home for little to no cost, no questions asked.
Craigslist is working on it, They are newer and if you spend enough time on there you will notice there are a lot of changes going on.