Link.
Given the positive reactions, I think the professor seeded them with a positive impression of the site's content.
I would say it was the other way around.
Agree. Intelligent sounding agreement that doesn't sound awkward is hard. I find it stretches the creativity far more and all else being equal leaves you sounding less impressive than the original speaker.
Link.
Given the positive reactions, I think the professor seeded them with a positive impression of the site's content.