> Some legislation is required

Is it not enough to simply let the people decide who they want to do business with? I'm genuinely curious.

Is the article itself not .... "genuinely" enough?

    1. Buy $thing in good faith
    2. $thing stops working for $reasons
    3. Go to step 1

    1. Buy $thing in good faith
    2. It cannot be sabotaged by its own corporate creator due to legislation
    3. Visit the Bahamas with all your extra money.

How would a prospective buyer know that the company will shut their product service down?

Sometimes, it's a company that has done it before (e.g. Google). But not always.