My support, pietkuip!
I don't want to say anything wrong about A-team. I did once and regret having done so. He is way too much respected in this forum, so any critics would bring bad emotions on to you.
But you are right and his answer is, at least, childish, in my humble opinion.
I worked more than 15 years in charge of a lab in Valencia University and we had to suffer a professor who was so full of himself that, in petit comite he would admit that his books were written not to be understood, that way he was considered more intelligent, so much that most people could not follow him. This extremely pathetic story is totally true.
I'm not saying this is the case with A-team, don't know enough of him. <snip, irrelevant, personal information; N.>
I'm adding these lines because I'm very conscious of all my mistakes, I admit my ignorance, but want to push for a bit of humbleness for everyone in this forum.
Cheers