Steemit.com is down, as you said (I'm on Busy as well).

https://isitdownorjust.me/steemit-com/ shows that the website can't be reached. The best scenario is that the site's getting a lot of organic traffic (which is good in a way), and the worst scenario is that Steemit has been hacked.

I recommend we use Busy.org on computers and eSteem on phones while this plays out.