"Free" does not take "for."
"Free" means "for nothing" or "in exchange for nothing" so "for free" means "for for nothing."
"For free" is a redundancy. It should be, simply, "free," all by its lonesome.
In the author's defense, the editor always has final say on the headline, regardless whether it was the author's idea or the editor's.
Journo 101, never use a long word (or phrase) if a shorter, simpler one means the same.
syntax error in headline = F
No one cares.
“Free” means “for nothing” or “in exchange for nothing” so “for free” means “for for nothing.”
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I’ll bet you never use an ATM machine either nor even know what your PIN number is. Do you even have a hot water heater?
Probably even eat your food with au jus.