Please go to your preferences page and make sure your "See Mature Topics" setting is set. Setting it to "Yes" means you see the Mature Topics forum (contains political and religious debates). Setting it to "No" means you do not see those threads.
Computer Examples: "which email provider is best?", "how do I install linux?", "how do I fix a bluescreen error?".
Game Examples: "can you play strategy games on a console?", "which Final Fantasy game had the best gameplay?", etc