I think that reporting system on Lichess is very good and it has worked numerous times in the past. However, recently, when I reported few users for having a VERY offensive username nothing happened. I believe it was more than 2 days ago.
What's funny is that a person with almost identical username got closed after my report. "OffensiveUsername" got closed, but "OffensiveUsername123" hasn't.
What's funny is that a person with almost identical username got closed after my report. "OffensiveUsername" got closed, but "OffensiveUsername123" hasn't.