Ofcourse MC is legal you could run around on 10 chars with follow and they can't do shit about it. You brazillian players should think about before you write.
"Keep in mind that using third-party software to control at least one character while you are logged into other characters will always mean that you are idle on at least one of them, as you can not actively play on several characters at the same time. In such situations, all of the characters you are logged into are violating the rules."