Interesting! There are lots of variety accents out there. I actually can’t tell any of them. General American accent is my favorite. I used to practice the five points hard. It had been interesting! I’m wondering that pronounce the word “interesting “ you said. Sounds odd. It’s an accent, isn’t it? I’ve never heard that pronounce like this.
many many people, who live in the US, they are from Iraq, Afghanistan, Ethiopia ( east Africa ), Nigeria... ( and Mexico of course ). Maybe they didn't begin to study American English at age of 13.
by the way securing the meaning is always the number one priority in communication so rest assure even grammatically rhythmically sound sentences are capable of intimidating the listener oftern it doesnt matter how dumb a person sound as long as that person meets the intended effect