They aren't disagreeing. Parse what they said, and notice nothing contradicts the post they're replying to.

That's what I didn't want to say explicitly in my other comment: they made a long-winded comment that appeared to express a negative statement about what the poster said, while technically agreeing. To me, it's a perfect example of a lawyer's yes-that-sounds-like-no.

Edit: glad I didn't say this in the other comment. Shouldn't have jumped to conclusions.