This is posting post from eSteem mobile app while Steemit.com is in maintenance to check if transaction goes through.
Some nodes forked out due to minor issue, caused steemit.com to change read only mode for short time.
What you can do during these times?
Don't panic, Keep calm....
Accounts and wallets everything is SAFE.
You can use eSteem mobile app when you know which node is not suffering from fork.