Recognizable. Writing about stuff that you know and where you make the difference in day-to-day (work)life is something that can be turned into money on a platform like Medium. Really love writing about tech entrepreneurial stuff as Shipharder.com.

Also writing about tech coding stuff, tools of the trade and how to fix stuff like app dev issues with Apple etc. as eekayonline is enjoyable. At the very minimum I write my own reminders, at the most, others read it and I get bucks via the platform.