The bans seem to work, AFAICT, but only after each ban takes effect, not before.

So you don't know?

Banned groups largely stop recruiting and killing. But then, in a different universe, maybe they would have stopped recruiting and killing even without the ban. How would you know?

Unless I am presented with some hard evidence (that isn't from the German state) then I find it hard to believe.

It still doesn't justify curtailing individual liberties anyway.

Well, it's impossible to prove that no murders were committed for this reason as opposed to any other reason, so you're going to stay unhappy.

But I looked up what individual liberties it curtails, and there's something that may interest you.

The individual liberty curtailed is this: If something's banned, and someone sets up a replacement organisation, then merely being a member is punishable. The prosecution has to prove to a court that the new organisation is a replacement for the banned one, and any factual or dejure leadership may go to prison for up to five years, any other members for up to three.

The bit that will interest you is that this is quite similar to other laws. You don't have to kill anyone to have your liberties curtailed in this manner, mere economic crime will do. If you're convicted of economic crime, that may curtail your liberty to be Geschäftsführer etc.