I think with this 4 stakeholder groups you cover every single person on steemit... Me personally, being so small, I always decide to post recent news, interesting and that can grab some attention.
Most of the times, when I start to research for something that happened in the world (normally more connected with economics), I look for something that is appealing to me, because if I don´t like the job I´m doing it will reflect into my post. Less quality, zero upvote potencial