Are you so certain they haven't, multiple times?
I know you didn't "specifically", hence the turn of phrase "paint the picture".
I don't see how text or binary based newsgroups would be all that useful or helpful to a radical group.
Child pornography haven, yes, it is. I haven't heard of any other filesharing medium where they haven't been able to completely dismantle child pornography other than usenet.
Bookmarks