He doesn't need to.
His Japanese readers already have similar forums, similar discussions, and similar arguments as we do. They really don't think any different than us.
The Fan Letter episode (which was originally written by Tomohito Ohsaki, an Oda fanboy) should have been enough proof that those fuckers out there argue stuff like Vista vs Mihawk for days as well.
Literally a 5 second search on Twitter shows this:
They even use the same stupid powerscaling "character stocks" terms: