I didn't know Mac as well as I would have liked to. But I knew enough to have gained something substantial.
He brought with him a good deal of life experience and programming wisdom, and gladly shared it with others. I saw him as the "good-humoured rock", unshakeable, strong, yet causing no harm, providing shelter to others as if it were a law of nature to do so. He drew joy from many things, and shared that too.
While Mac made mistakes and met with oppositon now and then, he was never wrong. That is, he was never motivated by malice or selfishness as far as I knew him. He wanted the best for everybody.
But he made it all seem perfectly natural. It wasn't hard to overlook his great qualities. I think many of us took him for granted, and we really need to reflect on how much he actually did.
To a great man, friend, and a life well lived! QBasic rules.