You legitimately have it completely backwards. The word "piracy" was coopted to put a more severe spin on copyright violation. As a result, it became "the common usage of the word". But that was by design. And it's worth pushing back on.
>>buzzer+(OP)
Sweden has a political party called "The Pirate Party"(1), and "The Pirate Bay" is Swedish so I think a couple of Swedes memeing before it was cool has a significant impact on making the name stick but also taking the seriousness out of it.
>>buzzer+(OP)
I don't have it backwards. Language evolved, and piracy got a new definition. It's even in the dictionary. Trying to redefine words like this is futile and avoiding certain words or replacing them with others is a quirk that RMS has.