Remember how the Deep State forced Amazon to shut down WIkileaks Servers? Remember how Deep State forced to shut down the Lavabit mail provider? Remember how the Deep State forced Twitter to remove accounts they suspected of being "Russian trolls"?
What make you think they wouldn't do the same with SteemIT?
Who's gonna resist and how?
You can't shut anything down on the blockchain 😉
You don'r really need to completly shut it down. Just forcing ISPs to make them inaccessible or painfully slow is enough.
You buy VPN service