The typical conspiracy theory paints a picture that the Devs went out of their way to micromanage every single play and card draw and matched opponent every singe round and every single game and every single matchmaking; even if that was automated and even if the Devs went over the extreme mathematics to do it (unlikely) and even if they had the massive hardware resources to do it (unlikely) it would still not work; the third parties would simply catch the rigging within a day of collecting stats because those are all very blatantly obvious data in public.
Now the big irony is there is a conspiracy theory that would work but it doesn’t cross their mind because of the way their mind works; the rigging could just be that the MMR is raised so it gives you harder opponents and I mean that could be done even unfairly so it would be literal rigging (because third parties don’t have a view of all games to determine the hidden MMR); but it doesn’t cross their mind ..because they simply can’t fathom that better players than them exist.
tl;dr: the conspiracy theorists think they are the best players in the world, and because of that the best conspiracy theories fly over their head.
PS Reminder that “Carnivore” with ~53 posts, is a racist who got their real account permabanned, and made a sockpuppet account to continue their abuse because I was the victim of their attacks.