Also, being a witness is like being a politician - people expect you to have opinions on keen topics.

Here's one that will resonate the few two days: https://peakd.com/hive-174578/@anonyi/abuse-report-an-80-rep-account-neck-deep-in-multi-account-and-farming-abuse-alokkumar121

Stating your opinion (and reasoning it) would also help to establish yourself in a non-intrusive way.