This question is stemming from the meta post "I thought I posted a good answer". This user was obviously targeted by chat users who didn't like the answer or disagreed with it and decided to down-vote without providing feedback.
I know this was corrected for this user but is there any mechanism in place to prevent this type of behavior? This was not a case of serial up/down voting because it came from multiple-users.
I searched meta but didn't find a case that this had been encountered before. It seems unfair that chat users post dv-pls and then everyone does this without providing reason or explanation. If there is no mechanism in place to prevent this type of systematic gang-up, should there be?