I believe most of these conspiracy theorists are blaming fair losses/bad luck on the game being scripted. It's very easy to make that claim instead of admitting that one wasn't good enough or that it was just down to poor luck.
It might be something in some of the theories, like the one bosnian posted with a guy from reddit checking the coding of the game, but it's going too far. Everyone blames it on the game being scripted when they lose and I'm tired of it. And to the post you quoted me in, I do not believe that the players are handicapped in the season after a promotion. Some minor scripting to make games more tight if one player is dominating, sure, I believe that. But like I said, everyone are blaming everything on the scripting.