This is something that often gets missed in the “Why can’t Nintendo be more like Sega?” argument.
Nintendo sells games from other publishers, Sega doesn’t. Other publishers get mad if Nintendo can’t keep piracy on their platform under control. They send angry letters, complain to their representatives, and so forth. It’s not just (arguably) lost sales, but now you have to deal with more cheating players. To Nintendo, piracy is an embarrassment. Nintendo files DMCAs, in part, because other publishers expect them to and because only Nintendo can.
Nintendo sells games from other publishers, Sega doesn’t. Other publishers get mad if Nintendo can’t keep piracy on their platform under control. They send angry letters, complain to their representatives, and so forth. It’s not just (arguably) lost sales, but now you have to deal with more cheating players. To Nintendo, piracy is an embarrassment. Nintendo files DMCAs, in part, because other publishers expect them to and because only Nintendo can.