What's the incentive to build tech like this? Or, why is it valuable for someone who is shadow banned from knowing they're shadow banned because they don't get

What's the incentive to build tech like this? Or, why is it valuable for someone who is shadow banned from knowing they're shadow banned because they don't get reactions? This doesn't make sense to me, because it seems like a huge amount of investment to...what? Get them to see more ads instead of getting sick of people not reacting to their trolling and leaving entirely? If the return on investment is high enough for this to be practical, it suggests the community has a toxicity problem that itself needs to be addressed. What makes so many people so angry and toxic?