a fan of me

[allthewayanime]

An extremely well-educated newspaper columnist was talking on TV about those people who like and who do not like his political views.
Then he said, "He [referring to a famous person] is not a fan of me."

I know that "good" English requires "a fan of mine," but can you grammar experts make a guess as to why this famous columnist made such a "mistake"?

Thank you.

[bhaisahab]

An extremely well-educated newspaper columnist was talking on TV about those people who like and who do not like his political views.
Then he said, "He [referring to a famous person] is not a fan of me."

I know that "good" English requires "a fan of mine," but can you grammar experts make a guess as to why this famous columnist made such a "mistake"?

Thank you.

Not being inside his head, I wouldn't like to speculate. Who is this person by the way?

[AlexAD]

Not being inside his head, I wouldn't like to speculate. Who is this person by the way?

Not a teacher, nor a native.
I think that most people make mistakes while speaking their language.
They even might not be aware of that. May be because they got used to the way they speak something.

[Ilki]

An extremely well-educated newspaper columnist was talking on TV about those people who like and who do not like his political views.
Then he said, "He [referring to a famous person] is not a fan of me."

I know that "good" English requires "a fan of mine," but can you grammar experts make a guess as to why this famous columnist made such a "mistake"?

Thank you.

He may be a purist who does not like the double genitive.
If you asked me why the speaker's "I" can't be in accusative case - which is the case prepositional comlements normally take -, I would become very hot under the collar.

[5jj]

If you asked me why the speaker's "I" can't be in accusative case - which is the case prepositional complements normally take -, I would become very hot under the collar.

Most writers today prefer 'object(ive)' to 'accusative'.