"No commercial render items" would at least be more clearcut. A lot of freebie posters put "no commercial use" meaning "don't sell it", while others intend for it to include renders such that they're saying "don't profit by it." When the copyright owner can be contacted, those confusions can get sorted out. A lot of the time, the creator cannot be reached--the creator has dropped out of Poser use, changed email addresses, ISP disappeared, or something else makes it impossible to ask. More frustrating are the files that don't have a readme, so it's not even possible to contact the person that created it.