Comment by Analemma_

I wish you the best of luck, but these days the main problems you're going to be facing are political, not technical. What makes people start to display "signs of hostility" these days is almost always tribal politics, and when you ban that, you are (at least from their POV), engaging in politically-motivated censorship. If it gets any kind of traction or visibility, your tool will be pinpointed as a weapon of The Enemy for suppressing truth and entrenching the powers that be, and you'll start getting threats to match.

Not to say you shouldn't do it, but you should be aware of what you're signing up for.