If they are so private, don't put them online

Twitter to introduce new disappearing posts called "Fleets," much like Stories

Twitter has announced a new soon-to-debut option on its platform that will allow users to post brief messages called "fleets" that will disappear after

People just don't want to be held responsible for things they say online. If you make a threat, Twitter will be able to reach back in time (nothing is deleted) and hand information over to the authorities.