The Tankies have nothing but free time, they don't work. Unless they paid to post here, which I doubt.
They have to ban people who call them out otherwise they have nothing else to do but circlejerking all day about how they'll do the revolution. Just don't expect them to leave their armchairs.
Why did the USSR allow rent? Isn't that stealing from the workers with a Landlord who didn't earn it?
Mao had the right idea of Landlords.