Fake Barber Half on eBay

There's a fake 1901 O Barber Half Dollar newly listed on eBay as an auction. I set the seller a note letting them know it was fake; they insist it's real as it's been authenticated by a coin dealer:
Linky
Any doubt, look at the "1" in the date. Please repot.
Linky
Any doubt, look at the "1" in the date. Please repot.
I love them Barber Halves.....
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Comments
Any doubt, look at the "1" in the date. Please repot.
the date is a joke.
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Linky
Please report.
My YouTube Channel
My YouTube Channel
COINS FOR SALE AT LINK BELOW (READ CAREFULLY)
https://photos.app.goo.gl/oqym2YtcS7ZAZ73D6
She or "they" replied: How do you believe or why this coin is not genuine?????
She replies again to my answer where I explained why and how I believe it to be not genuine by saying "U have got to be joking....I had a pcgs (all lower case) grader look at the coin....it is 100% genuine."
Still time to heckle the seller on the '12 Half!!
Looks like you made a friend for life. I like the listing states bid with confidence, 14 day return. Then above in the main part of the listing it states no returns!!!
Have fun looking at the Barbers.
Jim Merulla
COINS FOR SALE AT LINK BELOW (READ CAREFULLY)
https://photos.app.goo.gl/oqym2YtcS7ZAZ73D6
you all have no clue on what you face and how much this issue has grown
Help me understand the concern- I thought selling fake coins was damaging the hobby?
My YouTube Channel