Just tried out his suggestions combined with some of the comments there (what I tried: put boiling water in the moka to start, pre-heat my electric stove while preparing the moka, use a full but not overly full basket, and avoid sputtering by actively controlling the applied heat with the lid open and taking the moka off the heat the moment sputtering starts) and my impression was that it makes a noticeable difference. Specifically, I had always just accepted that moka coffee is fast and easy but bitter, and this was much less bitter: I preferred it and I think I'll keep these changes.

YMMV of course!