Here are some articles on the subject:
Steemit Trending Page: UNFUCK ME NOW!: https://busy.org/@introvertspeaks/steemit-trending-page-un-fucked-me-now
Censorship and abuse article: https://steemit.com/steemit/@equ1l1br1um/dmania-owner-zombee-is-abusing-steemit-delegation-with-multiple-accounts-stealing-users-chances-of-getting-rewards-and-censors
And another: https://steemit.com/steemit/@skeptic/the-steemit-issues-arguments-from-the-other-side-censorship
About the Steemit Blockchain: https://steemit.com/witness/@justinadams/who-really-owns-your-steemit-data-the-community-seed-nodes-project-forever-nodes