What you asked about to begin with was the ties between Kakao and Japanese publishers, not the ties between Kakao/Japan and the DMCAs.So no, yet people are endlessly repeating it like it's true even though the proof is literally just vibes.
So yeah, there's an actual provable connection between the two.Does anybody have any actual provable connection between Kakao and any Japanese manga publisher
Still, even without any direct evidence of their involvement here, it's pretty suggestive. You have Kakao spearheading massive global anti-piracy efforts and talking about targeting Mangadex in particular. Then Mangadex is hit by massive anti-piracy efforts. It's not unreasonable to speculate that those two things may have some connection.
People just shouldn't confuse that speculation with fact.