The nofollow noopener here is a matter of either security alongside target="_blank" and/or for the purpose of not passing search spiders on through to the links.
We actually feel like we should have dofollow links as part of the open web. We deal with spam by adding noindex headers to pages which trigger as low quality or likely spam.
Does this address what you're getting at here?
Posting on Medium and Codementor will not help you much with content ranking. Or maybe I'm wrong.
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We strive for transparency and don't collect excess data.