They don't block .ml so they can spam "you're on .ml lol everyone you're talking to is an idiot/tankie/Sino-Russian bot" unprompted to anyone else who actually tries to engage in debate here. Acting like an edgelord with low effort dunks presumably also with a saviour complex of "guiding people who stumbled into the tankie zone back to the Western-liberal light" takes priority over actually blocking the people they hate and keep threatening to block.