Flat earth was debunked years ago. it is brought back up by Cass Sunstein (google him), he is skilled in cognitive infiltration. Obama gave him the go head to employ 100s if not 1000s paid trolls online to restart this bogus claim that has I repeat; been debunked. This was to discredit online conspiracy theorists groups by making this long debunked theory spam all over youtube, where numbers and numbers of videos a day would be uploaded by the paid trolls that couldn't even tell that the moon orbits the earth each month and that they don't even believe in the gravity.
It is a psy-op aka psychological operation. It has been done to other conspiracy theories too.
I know, I am in the tinfoil hat community. An many active theorist have debunked flat earth again for the past 2 years. The trolls don't care as long as others believe we don't understand common science. The paid online trolls goal is to discredit.