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Did you just automatically vote some random posts too ? Revoked all apps until someone explains what's happening and which app caused that to happen.

Same thing happened to me wtffff. Just revoked all apps as well.

Utopian has been confirmed as the app the problem came from, I must say I didn't expect that at all.

Some useful links to learn more about what happened:
Utopian - SteemConnect

Appreciate you letting me know. Thanks for sharing this information.