@bachbach: As you guessed (https://news.ycombinator.com/item?id=18191949 https://news.ycombinator.com/item?id=18191949) your account does appear to be banned as

@bachbach: As you guessed (https://news.ycombinator.com/item?id=18191949 https://news.ycombinator.com/item?id=18191949) your account does appear to be banned as of today, your comments are autodead, and vouching for them does not vivify them. As none of your comments seem offensive, and since you don't seem to have been flooding the submissions, it doesn't make sense to me. You should write to 'hn@ycombinator.com' and ask what's up.