Slycks "news" site has of recent time turned into a pro usenet site with advertisements and special deals for slycks readers, that is the sort of site they would like to target because it obviously benefits from encouraging piracy in their eyes, and the providers have not exactly shied away from advertising such infringement with one in particular already losing a case for encouraging such activity, who knows what the future will bring but it does seem in this case they may have an angle for sites that have advertisements for newsgroup access suppliers and who broker deals with such vendors.
Such legal activity is based on the assumption of revenue not being created without the plaintiffs copyright content being made available, and thus the suit is to obtain what they feel is their share of that revenue as rights holders, how that actually stacks up in court is another matter.