I have heard that about porous eggs, but a friend gave me 24 EE eggs for us to split the hatch, and they were the most porous I have ever seen. Hatched 22The brown and yellow look like clears to me. They are pretty porous as well. I would not expect to get eggs that porous from a buyer. (If they were from a buyer?) Not that they can't/don't hatch, just that I would want my best to go to the customer, and porous are not the "best".
Air cell looks good to me for day 7.