People come and go, dip in and out and take what they want/need from the forum...it's a place for discussion on audio...not a family.
David got his feelings hurt, took his toys and went home. So what? I see over and over that we are losing so much of his expertise. Did we? Most of his contributions are still here to be read by all...most of what he says in various threads is just that same ethos over and over.
He actually didn't have a lot more new to add and was becoming more and more snarky to those who didn't follow his exact path to audio Nirvana. As a result, David also bruised a lot of people on this forum and sneered at many of their choices. One should be respectful if they want respect. David might have been right about a lot of things, and in fact I agree with most of his ideas on audio, but he was disrespectful to those who didn't share that vision of audio.
I know you had a transformative experience after visiting David's and I am happy for you to find what you were looking for but give it a rest! He was not a god or even a guru...just a man with good a good audio sense and more than a bit of salesmanship. In the end, he was still monetizing his expertise.
Will you go next? Would be a pity but looks like Tango followed his guru out the door.
The one I really miss from this forum is Audiophile Bill, who was very knowledgeable, especially DIY, and was also very respectful to everyone and displayed his knowledge without arrogance.
I personally think the limits of free speech are pretty wide on this forum as long as you avoid personal attacks beyond a certain limit and avoid politics and religion...not so hard to do...even for me.