A bot has been hanging around 3D-printing site Thingiverse, generating random and bizarre/surreal remixes of objects posted to the site by others <http://arstechnica.com/gadgets/2016/05/that-time-a-bot-invaded-thingiverse-and-created-weird-new-3d-objects/>. The creators of the bot recently showed some of the results at an exhibition. Is “confrontational art” just another term for “trolling”? Opinions about the bot’s contribution to the community seem mixed...