"I think respect is the name of the game. Mutual respect."

I totally agree with this statement.

What does it matter what ones personal beliefs are, whether they be theist or athiest? Scientific or otherwise?

Seeking knowledge and stating ones knowledge, beliefs and theories, scientific or not, is fine. Standing up against cases where either, and human interpretations of either, especially where they negatively impacts others, or society(now and in the past), I see as fair game...I even applaud those who do so agressively, IMO that is a good thing.

But, belittling the personal beliefs of others, theist or athiest (when you fail to see it the same way), I see as wrong, and reflects poorly on that person.