The screwed up laws make it dangerous to report it, so better not.

Use an eraser to erase all free space on the harddrive, then defragment and do the same thing over again.

If you want porn then use other sources that are better kept control of. The Gnutella network isn't being monitored as to what can and can't be shared. If it was then it would fast be no porn, no movies, no music and no nothing.