Although the software is free to use, the developers of Kodi have not endorsed any add-on or Kodi-powered device intended for facilitating copyright infringement. Nathan Betzen, president of the XBMC Foundation (the non-profit organization which oversees the development of the Kodi software), argued that the reputation of Kodi had been harmed by third-party retailers who "make a quick buck modifying Kodi, installing broken piracy add-ons, advertising that Kodi lets you watch free movies and TV, and then vanishing when the user buys the box and finds out that the add-on they were sold on was a crummy, constantly breaking mess." Betzen stated that the XBMC Foundation was willing to enforce its trademarks against those who use them to promote Kodi-based products which facilitate copyright infringement.