Don't mess with the MTA
In early January 2020, the New York Metropolitan Transportation Authority (MTA) sent a copyright take-down notice to Etsy concerning an artist's map of the NYC subway system (see link). The MTA claimed that the artist's map infringed the MTA's copyright to its Weekender Map.
Why would the MTA bother to send a copyright infringement takedown to a single seller on Etsy? Perhaps they are looking for license fees. After all, the MTA's annual operating deficit is projected to hit almost $1 billion by 2022 (see link).