
Debunking every common myth about WB
and his WSM title
it's based on his devil fruit
as we can see this is already wrong, as why would Whitebeard not remain the stronger forever as long as he has his devil fruit? the answer is that his devil fruit has nothing to do with it.
- It's the way he lived his life
This theory, is from a non canon source but i will debunk it
Notice how Sengoku is yelling as he says this, it is something that he truly believes. It makes no sense to be scared of a Man who is called WSM only cause of the way he lived his life
This is one of the first narrative insights we get in to Whitebeard's power, and Buggy states that Whitebeard is the strongest pirate, very soon after this we are introduced with WB's title. This would mean that WB having wsm due to the way he lived his life, would make 0 logical sense.
All in all, you can say the title is false, but don't make the claim it means something else.