There are "I'm here to provide a service" bots which are almost always named appropriately. Like a reddit bot that links to IMDB or Wikipedia or converts between metric and imperial units.
The bots or sock puppets or fake accounts I mentioned don't provide any other value than copying old front-page material and repost it a year or 2 later without any indication that this isn't their own material.
How do they sit with you? As videos on twitter don't seem to work at all, it's a great service, imo.