Maybe I misunderstood but I believe coolcryptovator is saying that leaving feedback isn't necessary and allow admins to take action for breaking forum rules.
theymos has stated when you see someone breaking "guidelines" that you should report them and let the Admins take action.
You understood it perfectly correct. Theymos stated it quite clearly.
Some people were talking about neg-trusting spammers for spamming. This is not appropriate; report the posts, and if that doesn't seem to be working well, come to Meta with specific examples and suggestions.
Breaking of the rules are not a trust issue. It should be reported to the moderator for them to action. (Right bottom corner of each post - report to moderator link)
Discussion about acceptable and unacceptable behavior. Community values. DT