How do you get from site owners wanting to maintain a certain quality of discussion to "I take issue with people chiming in with their opinions". That's a heck of a leap.
If that's the impression you get then your impression is clearly inaccurate.
Why people can't fathom that site owners want to present their website in a specific manner, and maintain a certain level of discourse is beyond me. That you think a particular topic or language is acceptable has no bearing on what the site owners feel is acceptable.
I think the tone of this post speaks directly to why I believe that. It's a site discussion forum, for goodness sake. I take that to mean that, despite the site owners' philosophy, opinions on the site should be encouraged. So I think you should keep that in mind instead of rudely going after people for opining whether they agree with the philosophy or not.
"No matter how good you are, you're going to lose one-third of your games. No matter how bad you are you're going to win one-third of your games. It's the other third that makes the difference." ~Tommy Lasorda