If you surround yourself with "yes men" you are never challenged and never learn or grow.  

I like having my ideas challenged.  Sometimes, I strengthen my beliefs and better understand why I believe what I believe.  Sometimes I slightly tweak my beliefs.  Sometimes I totally change my beliefs because I was wrong.

I like subscribing to you because, although we don't' agree on everything, the discussions are always thought provoking.  We do usually think similarly on the important stuff.