I found the same on googling it. But to be honest it was just the Portuguese version of the word misleading to this form, rather than a profound knowledge about its accepted variations in the last century.

Maybe. But something to keep in mind is that the person who called you out has issues and most likely should be ignored. Who talks that way to others in an honest discussion?

> misleading to this form, rather than a profound knowledge

This doesn't sound native either.