It doesn’t show as flagged for me. Time heals all wounds, if your comment is not objectionable it will usually be vouched for eventually. Which is one of the reasons it’s a rule here that you don’t complain about voting. Such comments also rarely age like wine :)

Well it was flagged in the beginning, it's not like I imagined it.

IMHO people should be allowed to complain otherwise how can we spot deficiencies and injustices and improve?

You can complain, you'll just get a small karma hit for it. It's inevitable because it's off topic, but karma on HN is more or less meaningless anyway.