In One Piece manga, go look up ”Yamato did not have seastone cuffs on” reddit thread. I was gonna look for an image and all the evidence are already there.
Holy cow bro please go back and reread the last ten pages of this thread
Loki does not have future sight and Wano confirmed haki is suppressed by seastone
Loki does not have future sight and Wano confirmed haki is suppressed by seastone
You people are confusing "weakening" with "not being able to use it at all"
Sea stone depletes energy to the point that one finds it difficult to use haki.
But it doesn't mean one can't use haki at all.