It is easy to make personal attacks - you are so stupid, ignore XYZ's post - he doesn't know what he is talking about, etc., especially when you don't like what they have to say. I did not say any of those things. I said the conversation was ignorant - lacking in understanding - grass in a paddock, alfalfa in a bag, and hay all will be digested by the same enzymes, bacteria, stomach juices, etc.
We had an old pony that could not eat long stem grass hay any more as he would choke on it. Much to my irritation, the only way my wife could keep weight on him in the winter was 1. Feed copious amounts of soaked equine senior, or 2. Feed straight alfalfa - he left the stem and ate the leaf, or 3. Allow teh pony to graze the hay fields during the winter and not confine him to a paddock.
BUT not being able to injest a hay is much different than not being able to digest a hay.