The world always work this way. Attractive people gets more attention when people don't know you. For average people like me we have to work harder to get more attention even if the quality of the content could be the same. I am not complaining just saying it's the human nature that people like beautiful things.
As to what kind of post gets more attention, from my short period of time in this community, I feel like good content on Steemit, blockchain, life self improvement etc always gets higher vite.Building up follower is key for newbies in my humble opinion. My followers are still low, and my articles don't get too much attention from the community. But I just have to ignore it and continue to focus on what I am doing and put up quality content. Hopefully over time followers will come.
No amount of laws or social justice warrioring will change human nature.
I say, try the minnow support bots. And of course, I'm a big fan of making comments everywhere in order to get followers.