I agree with the article; I haven't ever been comfortable ceding control of my personal website to a third-party. Inevitably conflicts of interest arise.
The great appeal of Medium is the potential of featured content being re-tweeted by thousands.
And even that is absolutely fleeting. You're probably better off writing it on your own and submitting to Hacker News as the potential reach is much greater.
The great appeal of Medium is the potential of featured content being re-tweeted by thousands.