Lmao Kodansha just announced they are taking strict actions to identify the ones responsible for the early leaks of Attack On TItan.
The earliest & the more you leak the more you risk pissing off the publishers off. This is is why providers like redon doesn't immediately post the full summary and this is why monday spoilers are usually one sentence and the tuesday ones do not cover everything.
Honestly I'm surprised the korean guy still didn't get caught.