Shanks losing his arm of course, pretty iconic moment. I think majority of OP readers were either moved or impressed by this scene.
Shanks ending the war just painted him in a very different light at the time. It really felt like he had the firepower to take on both the marines and BB lol. He also came to MF post-Kaido interaction and
Kaido was no where to be seen. So portrayal-wise, RHP just had the upper hand against the Beast Pirates. They either forced Kaido to back off through negotiation or via a short skirmish/threat.