The fact that he blocked his listing for a few weeks means he was re-evaluating the price he was charging for his listing thus far. Then instead of point blank telling you the new price is what he has decided upon, he passes you on to Airbnb as if they are the ones who set the price that he is but the 'victim' of it also. To me this is quite cunning (and snaky), perhaps best to book elsewhere.
(I could think of a more sinister plot, but that includes global warning, the illuminati and the involvement of the CIA and perhaps that theory is way too sensational for this discussion. 🙂 )