Weekly markets modify the street with extreme regularity, affecting accessibility, parking and routing through certain streets for example. While milongas also may be quite regular, they only affect the amenity in question. If we tag milongas, we would also have to tag for example, named parties at clubs that happen every second Friday, or ladies nights, or theatrical performances that are long running, or any number of things. I’m not entirely opposed, it just opens a big can of worms that would probably need its own tagging scheme altogether.