No, not just for using it that I am aware of. Just meaning that pure anonymity on Freenet is not the absolute best and they suggest trusted peers only. Traffic analysis (among other things) is a hard problem to solve without introducing noise and requiring large bandwidth. I think what the parent was saying was that [1] is possible is unfortunate (without making any statements supporting the criminals of course).

1 - http://www.thedickinsonpress.com/news/north-dakota/3885239-p...