#minnowsupport — Minnow University — You are missing the point. Minnow aren't that likely to leave.
The problem is in the Plankton — New user open accounts, use the account for a month or so and then abandon the account again. And you won't even be hearing about them.
And to be honest: I copy paste all my Steemit postings on Minds and GAB as well. For me it wouldn't be worth the effort to create an article just for Steemit.
And I only use Steemit to write the article because Steemit saves drafts so I don't need to write the posting in one go or loose my posting to a browser crash.