Could be. Just remember to ask though “Who gets to determine what speech is allowed?”
IMO we have to put up with some pretty vile ‘speech’ in order not to descend into a totalitarian Stalin-esque, Stasi state where only the elite, or the mob with the most military control gets to determine what can be said, written etc.
In the case of NAMBLA, I see it as a good thing that these people basically ‘out’ themselves so they can be watched to see if they act on their vile beliefs. It’s better to know what people are thinking/saying.
What if they deem their acting it out as "speech?" After all, the Occuparasites and BlackLiesMatter reprobates claim this "right" with their lawbreaking.