At the time of this writing, HPR has almost 1500 episodes. Almost all of them are dedicated advocating, Free/Open Source Software, GNU/Linux, Open Standards and/or Free Culture and ALMOST ALL of them (I cant think of any exceptions) are hosted by NICE people being NICE. 

I'm familiar with the attitude that you're describing, but I think it's the exception these days. I'm somewhat of a late-comer to Linux/Free Software (2007ish), so maybe I'm not an acceptable measuring stick, but I don't even remember a time when that attitude was the rule.