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 
Everyone knows that any form of dissent is actually brigading, and the more dissent there is, the more you're being brigaded.
The brigading claims get extremely annoying when it's made by someone who just posted something extremely wrong and is now getting corrected by a bunch of people with more knowledge of the facts.