As you sit here trying to convince people that no, really, that's not free speech. Pragmatists ruin everything, and I've been around long enough to understand "boiling the frog", "not one inch", and that love of liberty creates at times very strange bedfellows.
If you want to make progress dealing with horrible people, stop trying to turn me/everyone else against them, and deal with them. Like an adult. Either avoid, or work with authorities, within the rails of due process, to resolve the issue. If there is no unsavoryness to the non-KF side, there should be no reluctance with regards to letting the authorities deal with it. If there is, then that suggests someone is seeking to leverage the justice system who wants to avoid the inevitable consequences of doing so when one doesn't have clean hands, which I see no reason to offer myself as a conduit to deliver. Investigation and truth cuts both ways.
I will not tell you that taking the easy way out is okay. I will not let you convince me through equivocation to give up a value I cherish deeply, that everyone is entitled to be heard, and to be free to pursue the ends of what they believe in short of actually engaging in violence. In time, it may be my own undoing, but I accept that. Too much has been sacrificed on the altar of the hypothetical in my life Clean hands and evidence, or it's just more "tit-for-tat" playing out at large.