This flashback scene is in Elbaf, with Saul there. VP says he's in hiding but its clearly just Elbaf lol, not roaming on a ship.
Said person is sinking ships in their vicinity (with no contact) and is suggested to be a DF user according to Laffite.
I dont agree that its Saul lol, otherwise there would have been zero reason AFTER this scene to leave this person nameless in the end.
You have to think about it from the Author's perspective, why would he ever have characters say things that make the reader think he's potentially a WG employee, a DF user, with a missing identity if in the end he's just Saul lol. It makes no sense
2. All Lafitte knows is he’s Sinking ships via whirlpool, however, he’s merely guessing it’s a fruit power he has no legitimate idea.
3. Because the man marked by flames is meant to be a mysterious character to the world of one piece. He’s not meant to be an individual everyone knows about. Jaguar D. Saul is dead according to the world, even Vegapunk refused to state that the man he met was Saul.
4. Because these characters can only speak from their own experience. And they’re all partly right. Sauls an EX WG employee. Saul likely has a mysterious power allowing him to destroy ships. Clues are designed to lead you to the correct answer. And we’re given the clues to it being Saul.