Ah, ok, thanks for answer, now is understood. I think I didn't read it in rules.
And one more question - how to unban acc?

Hi! I was banned for a nickname "Angry Jewish" with mark "extremism, inappropriate name". Can you explain what is of extremism here if I am the Jew? I can't be called by my nation name? This means if account was with nick for example "Angry German" it's also inappropria...