This seems perverse in the context of the copyright legislation being discussed in the EU today. On one hand, rights holders can indiscriminately send out take

This seems perverse in the context of the copyright legislation being discussed in the EU today. On one hand, rights holders can indiscriminately send out takedown notices to any they suspect of infringing, and the burden is then placed on the poster to prove that it's OK. On the other hand, sites will be required to police all posts, just in case something infringing is posted. So #1 - it's OK for the rights holders' bots to be inaccurate, but sites will be punished if theirs are. and #2 - all responsibilities accrue away from the rightsholders. They get all the rights, but have none of the responsibility or burden for (accurately) watching over those rights.