Weinstein (wine-steen): The surname of disgraced Hollywood producer Harvey Weinstein. Linguists have debated the pronunciation of his name, which strictly (some argue) should rhyme with Einstein. But Weinstein himself pronounces it "wine-steen."
"Ultimately," says Katja Wilde, Babbel's head of didactics, "people can choose to pronounce their name however they please."

Yes, with an important proviso -- you can't expect others to follow if you're going to use an arbitrary, non-grammatical pronunciation for your name's letters.

I am studying German, and I'm here to tell you that "stein" is pronounced "STINE" like "Einstein". And "Wein" is pronounced like "VINE". It's literally the german word for "wine stone".

Anyhow, you can spell your name "M-I-K-E" and insist to everyone your name is to be pronounced "John" but don't expect a lot of takers! On the contrary, expect literally everyone to get your name wrong -- and here's the catch: they are all right, and you're wrong.

Everyone (or every parent) is free to call themselves (or their child) what they want. However, no one has a right to redefine one or more letter pronunciations in the process. Nor can you make up your own letters. Not if you expect people to be able to pronounce your name properly.

Save the beatnik, incongruous random creativity for a live art display. In real life, there is such a thing as phonics (which varies by language, but every language has rules of phonics).

True, and in German the second vowel does the “talking”.   Harvey must be anglicizing his name.

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A wine stine would be a beverage container. But for a stuffed shirt, that's appropriate.
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There was a story not long ago of a black woman who sent her young daughter to school for her first day having registered her as "La-a."
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Her teacher didn't know what "La-a" was supposed to mean so she asked the little girl what her name is, and she replied "My name is Ladaysha. The teacher thought there was some kind of mistake so they called in the mother, who was very proud to announce, "The daysh don't be silent."
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When I heard this I immediately thought, the teacher missed a teaching moment, because that character inside a word is not a dash, but a hyphen, so the child's name, at best, would have been "La-hyphen-a."
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