So often do I see people starting their comment with some variation of that or "you're wrong!"

Proof? Pictures or it didn't happen.

But then they basically agree [...]

I still disagree.

[...] with that the other was saying.

Yah, I'm certainly not saying what you're saying, buddy.

People just want to shout [...]

Who's shouting? Lots of unfounded claims here ...

[...] and be angry [...]

Well, you're starting to make me angry.

[...] and dominant [...]

I am. And I'm not sorry.

Is this your first internet argument, kid?