Absolutely good point!

I think if I were to rephrase the submitter's comment in a way that aligned with my own views and concerns, it would be:

If your intent is to put information into the world for others to share purely out of charity/a desire to help others, or to get your name out, please consider options other than Medium, as Medium is ultimately in control if whether anyone can actually gain access to the content you've produced.

If, however, as you say, one's goal is to produce and monetize content as part of a personal revenue stream, then Medium seems like as good an option as any (though, personally, I'm not a huge fan of contributing content into walled garden ecosystems where the publisher can unilaterally change the rules on a whim), and folks here complaining that stuff is behind a paywall should go find free content elsewhere.

I am buying from time to time website-based tutorials or other type of content. I agree this creates a new problem: I don't even know what I bought in the last years, what kind of online live books with exercises I bought and from where. I try to keep them in a document, but sometimes I forget and search email to find out.

Still I would like to ask that if someone just wants to share information and it is not focused on monetization then please consider other options than Medium.

A lot of newcomers will not make a subscription there.