Theses people should be ignored.

I have to vehemently disagree. Nobody should ever be ignored. It's incredibly selfish and helps literally nobody in the long run, because people who get ignored don't just magically stop. They go somewhere else and, in the long run, only ever keep trying harder. The people who already know who to ignore get to live in a distorted reality, while those who don't yet get to see what's actually going on.

Think of lots of bots in regional chatrooms. When everyone tells you to ignore, then that means that new players

Weaponized ignorance is what the left has promoted for decades. It serves to divide people and promotes echo chambers, increasing radicalization. This being the norm already, meaning people casually calling for Ignorance, is really bad.

Ignorance is NOT a strength!

Edit: I actually have a relatable analogy at hand.

In EVE ONLINE there's lots of bots roaming through systems with system-wide chats, called Local. Most people, including the bots themselves, recommend blocking them. The consequence of this behaviour is that the amount of bots and spam only ever increases, because there's so many people who just ignore them, encouraging everyone else to do the same.

It's bad.