You're right Bosco...much on the internet is just that...absurd and untrue.
That being said, many of the rumors prior to BvS WERE true......including ultimately how different their (WB/DC) vision was from practically everyone else anticipating the movie.
Plotlines, the inclusion of Doomsday, Wonder Woman......speculation about Darkseid's influence...
I think the only rumor that was scathingly wrong was the inclusion of GL as a pilot in the battle with Doomsday.....
That one and the one where Scoot McNairy was the Flash or had robotic legs.