Those are exactly the fees they’re removing in the uk:
On Tuesday, eBay said its move, which has taken effect immediately, meant private sellers would no longer pay so-called final value fees or regulatory operating fees when they sold on the site.
Nintendo have always been like this, even as far back as the NES days. They were super protective over who was allowed to make and sell cartridges, and repeatedly filed lawsuits against companies making unlicensed carts.
They’ve always been ultra-protective over their IP and hardware, and will happily sue fan projects and emulation into oblivion any chance they get.