Personally, I think that's a bit jerkish when posting on a public forum. And I expect there are two kinds of people who are willing to put up with that, and read it anyway:
1. Those who are such fans of his that they'll read anything he posts, regardless of how difficult he makes it. (I expect this to be a rather small set.)
2. Those who don't care all that much about standard usage. This is not quite so small a set, but it seems to me to be somewhat orthogonal to his intended effect. They may be "only content matters" people, but they also may be just purely antisocial in the areas of communication and grammar.
Personally, I think it's a bummer that he does this. He actually had something decent to say in this post, and we're all talking about the style instead, purely because he insists on doing it this way.
see also https://en.wikipedia.org/wiki/Archy_and_Mehitabel#:~:text=Be...
"als ich eines morgens aus unruhigen träumen erwachte fand ich mich in meinem bett zu einem unaussergewöhnlichen ungeziefer verwandelt"