I believe the earth is round but then again its not like I can verify this myself. Many of the things we are taught as truths are blatant lies, so personally for me it wouldn't be a huge shock if the earth was in fact actually flat.
From what I've seen: most people who are flat earthers are either creationists or conspiracy theorists. Being a creationist is retarded, being a conspiracy theorist is fine. But usually there is a motive for lying, and what is the motive to lie about the earth being round and not flat? Usually at this point the flat earthers start sweating and thinking up reasons. The only reason I've heard them say is that the elite wants to hide the fact that bible is real. So basically all that comes out of their mouths to me is religious mumbo-jumbo that doesn't make any coherent logical sense.