you may be less knowledgeable about certain subjects or perhaps haven't been exposed to theories and certain philosophers. That is not a mark of less intelligence or being dumb... just an indication that you haven't learned that subject. There are many subjects you might bring up where I look like Cletus the Slack-jawed Yokel if I engage.

There are also a posters who are very knowledgeable and well-read but it is clear that intelligence evades them.