Permanently banned from /r/ conspiracytheories for a “dumb opinion”

What’s the point of discussing conspiracy theories in a conspiracy theory subreddit if the mods can just claim it’s dumb and permanently ban a user? 15 minute cities are real conspiracy theories. Real or fake is irrelevant. It’s a topic that’s been out there that is a legitimate discussion. Who are these mods? That’s the conspiracy! I didn’t know a “dumb opinion” is ban worthy. Sue me!