I think the issue here is scarcity. There's waiting lists for most council housing. The whole idea of council housing is that the state provides you housing b

I think the issue here is scarcity. There's waiting lists for most council housing. The whole idea of council housing is that the state provides you housing because you can't provide your own. If they're renting out theirs, where are they living? They apparently don't actually have a need, else they'd be living in it. So they're profiteering off housing that someone in need is still on the waiting list for. (I'd be tempted to agree with you if they were renting out their couch; the screenshot shows "Entire home/flat; 3 guests")