And we shouldn't allow this concept to go unchallenged here on Lemmy.
Commenting on an active post is not brigading
Posting a link to something is not brigading
Commenting on something you were linked to is not brigading
The only thing that might be brigading, but isn't because it isn't a real thing, is someone explicitly going, "Hey everyone, go here and harass this person"
It's all fine and good that we have some new rules to keep the peace with other instances but we must fight against 
I kind of wish there was like a "Thumbs up" button only for comments replying to your comment so you could agree to someone in way that showed you didn't have anything further to say. I mostly just use
For that, which I guess works well.