Wow, that's a really rude and sarcastic reaction to somebody who's just trying to be friendly. I also think his comments about your messaging were spot on.

In my opinion that was a really ignorant and degrading comment, as opposed to others who tried to offer real feedback.

You're totally misreading the tone here. epo is Socratically playing out the thought process of potential customers who visit your site. Obviously "middle men" aren't necessarily without value (as your examples demonstrate), but a lot of them are, and that's the perception you have to fight with your copy.