Ranked a brand-new site by borrowing someone else's authority first

Ranked a brand-new site by borrowing someone else's authority first
New domain, zero trust, page 1 was a year away. Couldn't wait.
So I published the same topic on a high-authority platform I had access to (a Medium-tier site, a relevant community), ranked THAT in 2 weeks, and used it to drive signals and links back to my version.
By the time my own page matured, it had real referral traffic and a few links pointing in.
Borrow trust while you build yours. Go find your platform.